whats primary succession and when does it occur

Answers

Answer 1

Answer:

Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life (because of recent lava flows, newly formed sand dunes, or rocks left from a retreating glacier).


Related Questions

What type of carbon cycling occurs when stored carbon in organisms is released when they die, and when carbon from dead organisms can be released underground in the form of coal, oil, or natural gas?

long-term carbon cycling
carbon storage cycling
carbon release cycling
short-term carbon cycling

Answers

Answer:

The type of carbon cycling that occurs when stored carbon in organisms is released when they die, and when carbon from dead organisms can be released underground in the form of coal, oil, or natural gas is called the geological carbon cycle. This cycle involves the long-term storage of carbon in rocks and fossil fuels like oil, coal, and natural gas. Carbon is also released back into the atmosphere through various mechanisms such as volcanic eruptions, fires, and burning of fossil fuels.

Explanation:

The carbon cycle can be divided into two main categories: the short-term carbon cycle and the long-term carbon cycle. The short-term carbon cycle involves processes that cycle carbon through the Earth system on roughly annual/decadal timescales. This includes photosynthesis, respiration, and decomposition of organic matter. The long-term carbon cycle takes millions of years to come full circle and involves the movement of carbon between rocks, soil, ocean, and atmosphere through a series of chemical reactions and tectonic activity. Carbon is stored in rocks and fossil fuels like coal, oil, and natural gas for a long time in the geological carbon cycle. Carbon is also released back into the atmosphere through various mechanisms such as volcanic eruptions, fires, and burning of fossil fuels in both short-term and long-term cycles

Which of these organisms is not a chordate?
earthworm
snake
sea squirt
human

Answers

an earthworm is not a chordate.
an earthworm,

hope this helped.

Which is the practice of inserting the DNA of another species into an organism's DNA so that the organism gains a new trait?
Cloning
Gel Electrophoresis
Genetic Engineering
DNA Fingerprinting

Answers

Answer:

Genetic Engineering

The practice of inserting the DNA of another species into an organism's DNA so that the organism gains a new trait is called genetic engineering. Therefore, option C is correct.

What is genetic engineering?

Genetic engineering, often known as genetic alteration, is a technique that modifies an organism's DNA using technology developed in labs.

Human insulin, human growth hormone, and the hepatitis B vaccination are examples of products produced using genetic engineering techniques. Other genetically engineered species including disease-resistant plants have also been created using these techniques.

Likewise, genes can be transferred from an animal to a plant or the opposite. GMOs, or genetically modified organisms, are another term for this. Selective breeding is not the same as the procedure used to make GE foods. Therefore, option C is correct.

Learn more about genetic engineering, here:

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In what ways are biotechnology and genetic engineering beneficial?

Answers

Answer: Biotechnology and genetic modification techniques have the potential to help meet the world's increasing food supply needs in more efficient, economical, and sustainable ways, by minimizing the use of important resources like land, water, and other inputs, helping reduce waste.

^^^ yeah that’s the answer

The Florissant Fossil Beds in Colorado are home to several massive redwood stumps that were subjected to a special kind of fossilization millions of years ago. What service could these fossilized stumps most likely provide? (Worth 15 points)
Please answer ASAP
1. tourism

2. shelter

3. lumber

4. soil creation

Answers

The most likely service that these fossilized stumps could provide is tourism. Since they are rare and significant specimens of ancient plant life, they attract visitors from all over the world who are interested in paleontology and natural history. While they may have been useful for lumber or shelter in the past, they are now protected as part of a national monument and cannot be harvested or used for those purposes. As for soil creation, while the presence of the stumps and associated plant and animal fossils can provide insights into past ecosystems and environmental conditions, they do not actively contribute to the creation of new soil.

4. Soil creation. That is because I don’t think they would provide any of the first three but soil creation is related to fossilization and the safety of tree stumps to the environment

HELP ME ASAPPP- A piece of mRNA had the code AUU UGC AAC CAU. Which amino acid are coded in this strand

HELP ME ASAPPP- A piece of mRNA had the code AUU UGC AAC CAU. Which amino acid are coded in this strand
HELP ME ASAPPP- A piece of mRNA had the code AUU UGC AAC CAU. Which amino acid are coded in this strand

Answers

Answer:

isoleucine, cysteine, asparagine, histidine

Explanation:

Search amino acid chart to help with this. Use the last three of the strand- CAU

Blackberry Golden fish are cute yes but how much are they? (if they are available as pets) and tell me some fun facts about them

Answers

Answer:

blackberry goldfish come from asia.

Explanation:

Answer:

The Black Oranda, also known as the Blackberry Goldfish

Explanation:

dude they are so creepy, how are these cute ?

List 3 negative impacts does plastic pollution have on the ocean?

Answers

Entanglement
Ingestion
And suffocation

Answer:

Negative physical impact on marine life, chemical impact on the water, and transport of native species.

Explanation:

Negative physical impact on marine life:

Plastic can be dangerous to creatures living in the ocean. Marine animals can fatally swallow plastic, become entangled in it, and even become physically impaired for the rest of their life.

Chemical impact on the water:

Plastics carry chemicals such as PCBs and DDT that can invade the water and cause harm to marine ecosystems.

Transport of native species:

Plastic can carry organisms from one part of the ocean to a relatively remote area. By introducing new organisms to an ecosystem, the flow can be disrupted and result in major consequences.

A class is learning about the evaporation step in the water cycle using a simple model. The model consists of a 1-L container of water. When the container is open, and it receives sunlight, the water can freely evaporate from the container. The students design an experiment using the model. In the experiment, the container will be filled and left open outside from dawn until dusk at different times of the year. The students will run the experiment only on days with clear weather. As a basis of their experiment, the students make an assumption that more water will evaporate from their model when more solar energy is present. Which of the following is a result that the students could predict in order to test their assumption?
A.
Equal amounts of the water will evaporate on summer days and winter days.
B.
Less of the water will remain in the container after one day in summer than after one day in winter.
C.
Less of the water will remain in the container after one day in winter than after one day in summer.
D.
Some of the water will evaporate on winter days but not on summer days.

Answers

The rate of evaporation of water from an open container is dependent on various factors, one of which is solar energy. The more solar energy present, the more water will evaporate. Therefore, the students can predict that less water will remain in the container after one day in summer than after one day in winter. Hence, the answer is option B. We can also explain why option A, C, and D are incorrect. Option A is incorrect because the amount of solar energy present is different in different seasons. Hence, the rate of evaporation will be different, and so the amounts of water evaporated will not be equal on summer and winter days. Option C is incorrect because it is the opposite of the correct answer. Option D is also incorrect because water will still evaporate in winter despite less solar energy being present.
C That’s the Right answer

PLEASE HELP!!
Analyze the given diagram of the carbon cycle below.

an image of carbon cycle is shown. the sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. an arrow is shown from the sun towards the left tree marked a. the sun is marked b. there is an arrow from the air above the clouds, marked c, towards the left tree. an arrow from a location close to the ground marked d points towards dead organisms, which is a label under the animal. an arrow marked e points from the right tree straight up to the clouds. an arrow marked f points from the animal straight up to the clouds. an arrow marked g points from the factory towards the air above the clouds, c. there is an arrow pointing from the air to the lake labeled carbonates in water, an arrow pointing down from dead organisms to fossils and fossil fuels, and an arrow from fossils to the factory. what compound does c represent

Part 1: Which compound does C represent?
Part 2: Name a process that could release this compound into the air.
Part 3: Explain how the elements that form it are conserved during the carbon cycle. Use complete sentences to explain your answer.

Justify how this compound was created from a recycling of carbon in the carbon cycle. Use complete sentences to explain your answer.

Answers

Answer:

Part 1 is carbon.  

Part 2 is organisms decay.    

Part 3 So, at the time of chemical procedures in the carbon cycle, the atoms of carbon are never destructed, however, they get rearrange and modify into distinct molecules. The mentioned cycle is essential for maintaining life on Earth.        

The justify part is reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again.

Explanation:

What do you think makes an argument stronger? Explain 1- 2 things that would make an argument stronger and more believable?

(This is for science so try to make it science-related.)

Answers

Answer:

a diagram, speech photos and classifications

Explan

proof or evidence of where you got the answer, or a diagram

List the muscular organs in the muscular system (nothing to do with other organ systems).
HOMEWORK DUE TOMMOROW!

Answers

Answer:

A whole skeletal muscle classifies as an organ of the muscular system. Each organ or muscle has skeletal muscle tissue, nerve tissue, blood or vascular tissue, and connective tissue.

The different organs in the muscular system include cardiac muscles, smooth muscles, skeletal muscles, connective tissue, nerve tissue and blood tissue Rhythmic contractions cover the heart’s wall. It is responsible for the beating of the heart. The skeletal system allows the body to extend and contract.

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i need help reasonably defining 10 parts of a cell.
parts of the cell: cell membrane, nucleus, cytoplasm, endoplasmic reticulum, ribosomes, golgi bodies (or golgi apparatus), lysosomes, cytoskeleton, mitochondria, and vacuoles

Answers

Muscle is soft tissue. Many elastic fibers make up the muscles. The body has over 600 muscles. Different muscle types have different tasks. Some muscles help you run, jump, and perform delicate tasks like threading a needle. Other muscles enable breathing and food digestion. Your heart is a hard working muscle that beats thousands of times a day. There are three types of muscle tissue in the body. They are:

Skeleton: As part of the musculoskeletal system, these muscles work in concert with bones, tendons and ligaments. Tendons attach skeletal muscles throughout the body to bones. Together they support the weight of the body and aid movement.

You control these voluntary muscles. Some muscle fibers contract rapidly, expending short bursts of energy (fast-twitch). Others move slowly like this: B. Back muscles that help with posture.

Heart: These muscles line the walls of the heart. They help the heart pump blood through the cardiovascular system. They do not control the heart muscle. Your heart tells them when to contract.

Smooth: These muscles line organs such as the bladder, stomach, and intestines. Smooth muscle plays an important role in many body systems, including the female reproductive system, the male reproductive system, the urinary system, and the respiratory system.

These muscle types work without you thinking. They perform important tasks such as moving waste products through the intestines and helping the lungs expand when breathing.

The components of the cell are as follows:

Cell membraneCell wall

            Cell organelles

            Nucleolus

            Nuclear membrane

             Endoplasmic reticulum

             Golgi Bodies

             Ribosome

              Mitochondria

              Lysosomes

              Chloroplast

              Vacuoles

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A camel is lost in the desert. It is not finding any food or water. It needs 9000 kilo calorie energy and 4 litre water daily. Its mass is 650 kg and 10% of its mass is fat. It has a water reservoir near its neck with a reserve of 312 litre water. It can live using its fat storage. 1g fat contains 9 kilo calorie energy. How long the camel can survive with it's reserve?

Answers

The correct answer to how long the camel can survive with its reserve would be 65 days.

First, let us calculate the total amount of energy derivable from the fat in the body of the animal:

Mass of the camel = 650 kgMass of fat = 10% of the total mass

              = 10% x 650 = 65 kg

If 1g of fat is equivalent to 9000 kilocalories of energy in the animal, then, 65 kg of fat would be equivalent to:

65 x 1000 x 9000   = 585,000 kilocalories of energy

The total amount of energy is 585,000 kilocalories and the total amount of reserved water is 312 litres:

Amount of energy required per day = 9000 kilocaloriesNumber of days 585,000 kilocalories of energy can serve = 585,000/9000

                                  = 65 days

Amount of water needed per day = 4 litresNumber of days 312 litres of water can serve = 312/4

                                                  = 78 days

The water reserve can last 78 days while the energy reserve can last 65 days. Since the camel needs both to survive, it means the animal can only survive for 65 days.

More about the camel can be found here: https://brainly.com/question/17997279

A camel is lost in the desert. It is not finding any food or water. It needs 9000 kilo calorie energy

A scientist wants to know how the distance from a nearby lake affects the amount of nitrogen found in the soil. She collects soil samples at various distances from the lake and measures the amount of nitrogen in the sample What is the manipulated variable in this experiment?
A. The distance from the lake
B. The size of the lake
C. The total number of samples
D. The amount of nitrogen in each sample

Answers

Answer: I would think A (The distance from the lake) but if I'm wrong please let me know and ill fix it ASAP!

Explanation: A manipulated variable is an independent variable subject to the changes of an experiment to analyze its effect on a dependent variable.

a, because if ur question is how the distance affects nitrogen in soul you would have to manipulate the distance several times to figure out different distances do

Highly organized systems like living cells should have _____.

a. High energy

b. High entropy

c. Low entropy

d. Low energy

Answers

the answer is - (C ). Low entropy ! I got it right on my test
the answer is c, low entropy

How does a mountain range in the path of prevailing winds affect precipitation on either side of the mountain?

Answers

Answer: As winds rise up the windward side of a mountain range, the air cools and precipitation falls. On the other side of the range, the leeward side, the air is dry, and it sinks. So there is very little precipitation on the leeward side of a mountain rang

Explanation:

Mountains and mountain ranges can cast a rain shadow. As winds rise up the windward side of a mountain range, the air cools and precipitation falls.

how does the circulatory system work with the respiratory system in the sequence for respiration

Answers

I believe.. The Circulatory System and the Respiratory system work together by 1) moving oxygen _containing air into the lungs and into the blood (trasporting materials). 2) They remove carbon dioxide from the blood. However, this step is also shared by the Excretory system as well.
When we’re breathe together the lungs give oxygen into the heart then from from their the heart pumps the blood out to the rest of the body with the help of the circulatory system

Can somebody figure this crossword puzzle out? Ignore the red circles though.

Can somebody figure this crossword puzzle out? Ignore the red circles though.

Answers

Answer:

its on quizlet

go on quizlet!!!!!!!!

Justin designed an experiment to find out how running up bleachers affects his heart rate. First he records his resting heart rate and then runs up the bleachers 10 times. Each time he reaches the top, he records his heartrate then rests 20 minutes.

Which is involved in Justin's experiment?

replication
repetition
both repetition and replication
neither repetition nor replication

Answers

Answer:

I believe it's only repetition which is doing the experiment over and over again.

Explanation:

Replication on the other hand would be if he was repeating some one else experiment with the same guidelines.

replication is the answer that i got

The diagram below shows the same model of the greenhouse effect... Which process is NOT AFFECTED by the amount of greenhouse gasses in the atmosphere?

Process A (Infrared heat escaping into space)
Process B (Sun sending light energy to Earth)
Process C (Infrared heat being trapped in the atmosphere)
None of them. The processes are ALL AFFECTED by greenhouse gasses.

The diagram below shows the same model of the greenhouse effect... Which process is NOT AFFECTED by the

Answers

Answer:

None of them, they are all affected

None of the above because they are affected

These days people use plastic to pay for everything. " What does the synecdoche mean in this question?

Answers

A synecdoche is a figure of speech by which a part is used to represent the whole and in this sentence the “plastic” is a part of the credit card but is used to represent the credit card in its entirety.
A figure of Speach that represents something as “whole”

what do you need to make good fried chicken? (This is a required answer btw)

HELP ASAP!!
Research how coral reefs are formed. What types of animals live there? What important roles do cnidarians play in coral reefs? How do the tiny animals get their food? How do algae help the corals? Write three-paragraphs describing coral reefs. Include the information listed above plus any other information you find.

Answers

Done properly, deep-frying creates a satisfying contrast between the crispy-crunchy coating and tender chicken. Beyond that simple textural enjoyment, the crispness actually sends our brain a message that the food itself is in good condition.

A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement best explains why the daughters’ physical appearance includes both similar and different features?


A: One daughter received fewer genes than the other.


B: Each daughter received a different number of genes from each parent.


C: The daughters received a random set of genes from both of their parents.


D: One daughter received all her genes from her father, and the other daughter received all her genes from her mother

Answers

C: The daughters received a random set of genes from both of their parents.

The physical appearance of an individual is determined by their genes, which are inherited from their parents. Each parent contributes half of their genes to their offspring, and the combination of genes from both parents determines the physical characteristics of the offspring.

When the two daughters inherit genes from both their parents, they receive a random set of genes from each parent, which can result in both similar and different physical features. Therefore, statement C is the best explanation for why the daughters' physical appearance includes both similar and different features.

D one daughter received all her genes from her father

Write a clear, thoughtful 2 paragraph argument that explains HOW 3 body systems work together to promote life functions.
0


No Effort




10


Student correctly identifies at least 3 body systems from the seven systems taught in class.


Student applies knowledge of each body system giving their function and major organ/s.


Student clearly demonstrates through explanations of how each body system works with each other.


Student uses learned writing strategies and writes in complete sentences


Minimum of 8 complete sentences.




Jaime went to the doctor because several strange things have been happening to him. He first noticed that sometimes when he tries to touch something he is unable to feel it. Then he noticed that when he tried to walk his legs wouldn’t always move the way he wanted them to. Lastly, he has been unable to control when he urinates.


HUMAN BODY SYSTEMS QUICK GUIDE


Circulatory : Transport gasses(oxygen,CO2) and nutrients throughout body;


Digestive: Breakdown of nutrients (food);


Nervous: Process & respond to stimuli;


Respiratory: Gas exchange;


Muscular: Movement;


Excretory: Eliminates waste to maintain homeostasis;


Immune: Defense against disease

Answers

Answer: the human body is made up of multiple interacting systems, within the systems there are 3 that really work together. for starters, the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce. The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells. Working along these cells is the digestive system, the human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body which then provides nutrients that give the body energy.

Explanation:

i hope someone had helped you cause i got this same question

the study of similarities in embryos of
organisms to find common connections

Answers

Comparative embryology

Answer: Comparative embryology is the study of the similarities and differences in the embryos of different species. Similarities in embryos are evidence of common ancestry.

Explanation: can I get the brainiest, please?

What surface process powers the formation of hurricanes?

Responses

winds, caused by uneven heating from the Sunwinds, caused by uneven heating from the Sun

water currents, caused by uneven heating from the Sunwater currents, caused by uneven heating from the Sun

water currents, caused by fast rotation of the Earthwater currents, caused by fast rotation of the Earth

winds, caused by fast rotation of the Earthwinds, caused by fast rotation of the Earth

Answers

Answer:

Explanation:In the Atlantic and Northeast Pacific, we use the term "hurricane" to describe severe storms with high-velocity winds that rotate around a central, low-pressure core. The same type of disturbance in the Northwest Pacific is called a “typhoon” and “cyclones” occur in the South Pacific and Indian Ocean.

In order for a hurricane to form, two things must be present: a weather disturbance, such as a thunderstorm, that pulls in warm surface air from all directions and water at the ocean’s surface that is at least 80° Fahrenheit (27° Celsius). Because it is the interaction of warm air and warm seawater that spawns these storms, they form over tropical oceans between about 5 and 20 degrees of latitude. At these latitudes, seawater is hot enough to give the storms strength and the rotation of the Earth makes them spin.

Hurricanes start simply with the evaporation of warm seawater, which pumps water into the lower atmosphere. This humid air is then dragged aloft when converging winds collide and turn upwards. At higher altitudes, water vapor starts to condense into clouds and rain, releasing heat that warms the surrounding air, causing it to rise as well. As the air far above the sea rushes upward, even more warm moist air spirals in from along the surface to replace it.

As long as the base of this weather system remains over warm water and its top is not sheared apart by high-altitude winds, it will strengthen and grow. More and more heat and water will be pumped into the air. The pressure at its core will drop further and further, sucking in wind at ever increasing speeds. Over several hours to days, the storm will intensify, finally reaching hurricane status when the winds that swirl around it reach sustained speeds of 74 miles per hour or more.

Eventually, hurricanes turn away from the tropics and into mid-latitudes. Once they move over cold water or over land and lose touch with the hot water that powers them, these storms weaken and break apart.

Recent studies have shown a link between ocean surface temperatures and tropical storm intensity – warmer waters fuel more energetic storms.

Answer:

The surface process that powers the formation of hurricanes is winds, caused by fast rotation of the Earth.The formation of hurricanes requires a combination of different factors, including warm ocean waters, moisture, and atmospheric instability. However, the primary driver of hurricane formation is the Coriolis effect caused by the fast rotation of the Earth.As the Earth spins, it causes the air and water to appear to curve as they move across the surface, which generates areas of high and low pressure. These pressure differences then create winds that move in circular patterns, which are the basis of hurricanes.So, winds, caused by fast rotation of the Earth powers the formation of hurricanes.

Based on your knowledge of scientific laws and theories, which of the following Is true?

A theory can never change, whiles law changes often

A theory is supported by a single researcher, and laws must be supported by separated groups of researches

A theory is an explanation for a broader concept than a law

Answers

The b: a theory is supported by a single researcher and laws must be supported by a separated groups of researchers
What the person said above

Waves washing sand onto land until a beach is formed is called
a erosion
b deposition
c rock build up
d weathering

Answers

Answer:

b

Explanation:

deposition!

The answer is B Deposition !

Explain in terms of the water cycle the cause of the general trend in water level from 2000 to 2015 shown in the graph.

Explain in terms of the water cycle the cause of the general trend in water level from 2000 to 2015 shown

Answers

Answer: Human use

Explanation: Over the years we humans have gone more demanding for water and the increase in population means increase in use therfore the use in water has increased

Answer:

it decreased in the mater of 15 years which means x is equavllient to yk and is causing erosion and is rather deadly

Explanation:

just explained.

Other Questions
What energy source helps evaporate water from the Earth's surface in the water cycle? A. gasoline B. Moon C. plants D. Sun the study of economics is primarily concerned with: group of answer choices keeping private businesses from losing money. demonstrating that capitalistic economies are superior to socialistic economies. choices that are made in seeking the best use of resources. determining the most equitable distribution of society's output. What are the factors of a command economy? you wish to compare the prices of apartments in two neighboring towns. you take a simple random sample of 12 apartments in town a and calculate the average price of these apartments. you repeat this for 15 apartments in town b. let begin mathsize 16px style mu end style 1 represent the true average price of apartments in town a and begin mathsize 16px style mu end style 2 the average price in town b. if we were to use the pooled t test, what would be the degrees of freedom? Select the statements that reflect our new understandings from the Human Microbiome Project Check All That Apply a. Viruses are part of a normal microbiome in humans b. Only bacteria inhabit the human body in the healthy state c. Even healthy people can carry pathogenic species as part of their microbiome d. Microbes have been discovered in tissues that we once believed were sterile e. The composition of the microbiome may have an impact on non-infectious diseases, such as heart disease, cancer, asthma and even obesity f. Formula has a superior set of microbes to add to the microbiome of a newborn quality control is a continual process of checking to make certain that there is consistency in the quality of products being produced. Change the following number to polar form and then divide. Express the result in rectangular form and polar form. Check your answer by dividing the original numbers in rectangular form.42-5The quotient in polar form is (cos + sin) (Simplify your answers. Round to one decimal place as needed. Type any angle measures in degrees. Use angle measures greater than or equal to 0 and less than 360.)The quotient in rectangular form is(Simplify your answer. Use the answer from the previous step to find this answer. Use integers or decimals rounded to one decimal place for any numbers in the expression. Type your answer in the form a + bj.)Check your answer by dividing the original numbers in rectangular form.42-5(Simplify your answer. Use integers or decimals rounded to one decimal place for any numbers in the expression. Type your answer in the form a+bj) In the context of treating people from various cultural backgrounds, which of the following is true?a) Expression of thoughts about illness is the same across cultures as each illness has its specific characteristics and symptoms.b) The way in which counselors convey respect to their clients is culturally determined.c) It is important for therapists to treat all the members of a family as equals across cultures.d) Treatment expectations remain constant across different cultural groups. 2. In order for a person to be charged with criminal liability, that person must be guilty of two elements. Most myosin classes are (+) end-directed motors, which can be speculated to be because a all myosins pull the (+) ends of two actin filaments closer together b ATP hydrolysis generates a +/- charge gradient across the myosin head that is crucial for the cross- bridge cycle. c during the cross-bridge cycle, the myosin power stroke moves the actin filament toward its (+) end. d during the cross-bridge cycle, when the myosin head is released from the actin filament, it binds again, this time closer to the (+) end of the actin filament. e during the cross-bridge cycle, positive (+) charges at the (+) end of an actin filament attract the myosin heads. Escribe las formas del pretrito perfecto a)[Estar:usted] ha estado alguna vez en Espaa? S, [pasar: yo] ________ muchas veces all mis vacaciones. b)Carlos, ya [hacer] ________ la traduccin? S, la hacer: yo ________ esta maana - __________ (ir) con mi amiga al concierto de Julio Iglesias.c) Nos [gustar] ________ mucho. or: t] ________ su ltimo disco? No lo [comprar] ________ todava, pero me lo voy a comprar. d) [leer: t] ________ ya la ltima novela de Garca Mrquez? An no, [leer: yo] ________ slo Cien aos de soledad.e) sa tambin la leer] ________ yo, pero la ltima me [gustar] ________ ms. Qu tal el fin de semana? Muy bien, [ir: nosotros] ________ al Lago di Garda.f) [tener: vosotros] ________ buen tiempo? S, [hacer] ________ sol todo el fin de semana, y mucho calor. Pues aqu [hacer] ________ un fro terrible. Esto no parece primavera. Y qu [hacer: t] ________ t aqu? Please Help! Explain or will be deleted!You spin the spinner once. What is the probability of landing on a red space? Which statement best describes the crust?A. The crust is divided into sections and is made of some of the densest rocks found in Earth.B. The crust is the outermost layer of Earth, composed of solid rock and divided into sections called plates.C. The crust is made out of solid nickel and iron.D. The crust is made of molten rock that flows like a thick, gooey syrup. Please circle answers, thank you so much!Evaluate. (Be sure to check by differentiating!) 5 (3296) pa dt Determine a change of variables from t tou. Choose the correct answer below. OA. u=15 OB. u = 31-8 O c. u=318 - 8 OD. u=-8 Write the persistence of false memories and emergence of collective false memory: collaborative recall of drm word lists 6.4 in 6.8 in 5.9 in 1) What would be the surface area of this box? * O 256.768 19.1 0 242.8 0 261.12 23. Quick-Quick-Move Logistics Company has an outstanding perpetual callable bond. The bond makes annual coupon payment, and the coupon rate is 4%. It can be called in one year. The call price will be $1,110 if it is called. There is a 35% chance that the long-term interest rate in one year will be 5.5% and 65% chance that the interest rate will be 3.3%. The current interest rate is 4%.A. the bond will be called as soon as the contract allows.B. the bond will not be called even though the contract allows.C. this is unable to determine whether the bond will be called or not when the contract allows. a process has three resources and two types of flows. the first flow has a demand of 43 units per day. The first flow type visits all three resources, while the second flow type only visits the first and the third resources. The capacity is 50 units per day at the first resource, 20 units per day at the second resource, and 60 units per day at the third resource.1. what is the demand total for each resource?2. What is the implied utilization for each resource?3. What is the actual flow rate for each flow? A continuous and aligned hybrid composite consists of aramid and glass fibers embedded within a polymer resin matrix. Compute the longitudinal modulus of elasticity of this material if the respective volume fractions of the aramid and glass fibers are 0.24 and 0.28, given the following data:Material Modulus of Elasticity (GPa)Polyester 2.5Aramid fibers 131 Glass fibers 72.5(A) 5.06 GPa(B) 32.6 GPa(C) 52.9 GPa(D) 131 GPa Consider an electric field that is uniform in direction throughout a certain volume. Can it be uniform in magnitude? Must it be uniform in magnitude? Answer these questions (b) assuming the volume is empty space. State reasoning to prove your answers.