Answers
Answer:
Catalyzing Chemical Reactions
Explanation:
Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies. They build some substances and break others down. All living things have enzymes.
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Related Questions
The book named Principles of Geology, which influenced Darwin, was written by
Answers
Answer:
Principles of Geology, which influenced Darwin, was written by Charles Lyell
Explanation:
you have heard that increasing carbon dioxide concentrations in the atmosphere are leading to ocean acidification. You have also seen the equation for this reaction, wherein increasing CO2 reacts with H20 to form carbonic acid. In your virtual lab you have been provided with a sample of ocean water, a pH meter, and a straw. The straw lets you blow your exhaled CO2 into the water, creating bubbles of CO2 that will mix with the ocean water.
Answers
As written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.
What is Carbon dioxide?Carbon dioxide is defined as the chemical compound that is made up of molecules each containing a carbon atom covalently linked to two oxygen atoms found in the gaseous state at room temperature. In air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas.
In the virtual lab, we will have to blow the \(CO_2\) we exhale into sea water using a straw which will create bubbles of \(CO_2\) that will mix with the sea water. A pH meter will then be used to measure the acidity of the sea water.
So, as written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.
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According to the passage, time travel is closely related to which of the following? cars space stars computers
Answers
Answer: Dees nuts
Explanation: i took the test
In which scenario is the ecosystem the most stable? Suggest a reason for this and use the word competition in this explanation
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Answer:
The ecosystem was most stable where the rabbit eats only plant A. I feel like this happened because since the rabbit is only eating plant a, the competition between plants A and B is reduced
What type of cell is the cell in this diagram ?
Answers
Q1) Based on the information in the unit, explain why the number of predators is declining in the
Appalachian region. What effects might this have on the forest?
Q2) Why is it important that diverse areas of the forest are monitored when counting trees? What
could happen if this wasn't done?
Q3) The unit discusses measuring growth in forests. Where else might it be important to measure
the growth of trees? Why?
Q4) If trees in a timber cruise were found to be of many different species, would that mean that the
forest could be used for timber? Explain your answer.
Q5) Why do you think that biodiversity is good for ecosystems?
Answers
Answer:
Q1) The number of predators is declining in the Appalachian region due to factors such as habitat loss, hunting, and disease. This can have significant effects on the forest ecosystem, as the absence of predators can lead to an increase in the populations of their prey. This can, in turn, cause a decrease in the populations of other species that rely on those prey for food, and can also result in an overgrazing of certain plant species, leading to a disruption in the balance of the forest ecosystem.
Q2) It is important to monitor diverse areas of the forest when counting trees because different areas may have different types of trees or different densities of trees. Focusing on only one type of area or tree species could result in an inaccurate count and misrepresentation of the forest's overall health. If diverse areas of the forest are not monitored, it could lead to an incomplete understanding of the forest's ecosystem, and potentially lead to poor management decisions.
Q3) It is important to measure the growth of trees in other areas such as urban environments, parks, and nature reserves. This is because trees provide essential benefits such as shade, air purification, and carbon sequestration, and monitoring their growth can help determine their health and inform management decisions. In urban environments, for example, trees can help mitigate the effects of heat islands and improve air quality.
Q4) The presence of multiple species in a timber cruise does not necessarily mean that the forest can be used for timber. The species of trees, their size, and their density all play a role in determining the economic viability of a timber harvest. Additionally, other factors such as the terrain and accessibility of the forest also need to be considered.
Q5) Biodiversity is important for ecosystems because it provides stability and resilience. A diverse ecosystem can better withstand environmental stressors such as climate change, disease, and natural disasters, as different species may have different adaptations and roles within the ecosystem. Biodiversity can also provide important ecosystem services such as pollination, nutrient cycling, and pest control. Furthermore, a diverse ecosystem can be more aesthetically pleasing and provide recreational opportunities for people.
What is natural selection? Answer in 2-4 sentences, including the words below:
Trait
Population
Adaptation
Reproduce
Answers
Natural selection is a process by which certain traits within a population are favored and become more common over time, while others become less common or disappear.
Why does natural selection occur?It occurs because individuals with certain advantageous traits are more likely to survive and reproduce, passing on those traits to their offspring. This results in adaptation, where the population gradually becomes better suited to its environment through the accumulation of beneficial traits.
The theory of natural selection was proposed by Charles Darwin, a British naturalist, in his 1859 book "On the Origin of Species." Darwin observed that individuals within a population show variation in traits and that some of these traits provide benefits in surviving and reproducing in their environment.
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The graphic shows the largest fresh and salt water sources on Earth. Which of these sources BEST completes the graphic? A. Snow B. Clouds C. groundwater D. Swimming
Answers
Answer:
Explanation:
C
WILL MARL BRAINLIEST!!!!
The islands bordering the deep-sea trenches
A. result from a series of quiet, continuous basaltic eruptions.
B. are accumulations of sediments on the margins of the trenches.
C.are formed from the activities of coral and other organisms.
D. are explosive volcanoes that emit lavas.
Answers
Answer:
i think its d
Explanation:
Which is biotic?
soil
✓ leaf
water
snow
IF ANYONE IS LOOKING FOR THIS QUESTION ON EDGE 2020 the answer is B!!
Answers
Answer:
The answer is going to be leaf
This is a symbiotic relationship in which one of the organisms gains
something and the other loses something in the process
A competition
B mutualism
C parasitism
D commensalism
Answers
Parasitic relationships: one species benefits and the other suffers
A paleontologist identified two distinct species of mollusks in the fossil record of a region. In the layer below a mass extinction that devastated the region, the paleontologist observed that shells of species A was present in small numbers over a widespread area whereas species B was abundant and found in a few restricted areas. Which of the following predictions about the fossil record in the layer above the mass extinction is the MOST likely to be supported by further excavations?
a. Species A survived because of its widespread range including some areas that were not as affected by mass extinction.
b. Species A survived because the low number of individuals meant that there was less competition for resources.
c. Species B survived because it was the more abundant and more individuals survived.
d. Species B survived because the population was concentrated in a few areas and had a higher chance of survival.
Answers
Answer:
a. Species A survived because of its widespread range including some areas that were not as affected by mass extinction.
Explanation:
The species distribution might confer extinction resistance during massive extinction events. One of the most important reasons for a species -or any other taxonomic group- to survive massive extinction is its wide distribution area.
The broad geographical range of a group -as Species A in the example- enhances the survival chances during mass extinctions. When the event occurs, it severely affects most individuals of a certain area. If the species is restricted to that area, then the species will probably disappear, no matter the number of individuals living there.
But if the species is widely distributed, there are more survival chances. The extinction event will only affect a few regions, but not all of them, meaning that some of the individuals of the species will be able to survive.
Probably as only a few individuals of species A got to survive, they must have suffered the effects of genetic drift after the disaster, causing a reduction in genetic variability.
The color of the mustard plant in Lab 4 (Natural Selection) was determined by a single gene with two alleles (Y or y). The Y allele was dominant to y allele, and Y gave us a green plant, and yy a yellow-green plant. You measure the following genotype frequencies: YY = 0.5; Yy = 0.25; yy = 0.25. You calculate the following Hardy-Weinberg Frequencies: YY = 0.30; Yy = 0.56; yy = 0.14 This population looks like it has evolved. We can tell this because : Group of answer choices
Answers
Answer and Explanation:
It occurs evolution whenever the allelic frequencies in the genic pool change. If the population is not in Hardy-Weinberg equilibrium, it is because one, some, or several of the model's assumptions are not met. If we want to know if a population is evolving, we must observe the frequencies of the population, and if they change over time. If there is a change, it might also be reflected in the phenotypic frequencies.
In the exposed example there was an evident change in the population genetic frequencies.
1) Genotype frequencies: YY = 0.5; Yy = 0.25; yy = 0.25
Genic or Alleleic frequency:
Frequency of y= f(q)= √0.25 =0.5Frequency of Y= f(p)= 1- 0.5 =0.52) Hardy-Weinberg Frequencies: YY = 0.30; Yy = 0.56; yy = 0.14
Genic or Alleleic frequency:
Frequency of y= f(p)= √0.14 =0.374
Frequency of Y= f(p)= 1- 0.5 =0.626
The allelic frequencies and hence the genotypic frequencies changes, so we can assume that there was evolution.
1 What does the codon sequence on the mRNA strand determine?
A The gene sequence of the DNA
B The amino acid sequence of the polypeptide
C The codon that is signaled
D The signaling sequence
2 What portion of the DNA is also known as a gene?
A The coding sections
B The non-coding sections
C The mRNA strand
D The polypeptide sequence
Answers
1. The correct answer is B.
2. The correct answer is A.
The codon sequence on the mRNA strand determines the amino acid sequence of the polypeptide.
The coding section is the portion of the DNA that is also known as a gene. Genes are the functional units of DNA that provide the instructions for making proteins. They are composed of coding cells, also known as exons, that contain the information needed to build the polypeptide, and non-coding sections, also known as introns, that do not.
The codon sequence on the mRNA strand is translated by the ribosome during protein synthesis. Each codon, which is a sequence of three nucleotides, corresponds to a specific amino acid. The ribosome reads the codon sequence on the mRNA strand and adds the corresponding amino acids to the growing polypeptide chain. This process is called translation.
In DNA, genetic information is encoded in the sequence of nucleotides, which are the building blocks of DNA. Genes are specific segments of DNA that contain the instructions for making a specific protein. These instructions are encoded in the sequence of nucleotides within the coding sections of the DNA, also known as exons. The non-coding sections, also known as introns, do not contain instructions for making proteins, but they play important roles in the regulation of gene expression.
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PLSSSSSSSSSSSSS HELP
Which option states an accurate difference between facilitated transport and regular diffusion?
Facilitated transport is a form of active transport. Regular diffusion is a form of passive transport.
Facilitated transport is a form of active transport. Regular diffusion is a form of passive transport.
Facilitated transport requires an input of energy to transport substances across the cell membrane. Regular diffusion does not require an input of energy.
Facilitated transport requires an input of energy to transport substances across the cell membrane. Regular diffusion does not require an input of energy.
Facilitated transport involves special membrane proteins that transport substances across the cell membrane. Regular diffusion does not involve proteins.
Facilitated transport involves special membrane proteins that transport substances across the cell membrane. Regular diffusion does not involve proteins.
In facilitated transport, substances move from areas of lower concentration to areas of higher concentration. In regular diffusion, substances move in the opposite direction.
Answers
Answer:
I believe this one is the answer
Facilitated transport involves special membrane proteins that transport substances across the cell membrane. Regular diffusion does not involve proteins.
What is the purpose of the part of the female reproductive system highlighted
below?
A. Transporting eggs
B. Developing a fetus
C. Storing eggs
D. Collecting sperm
Answers
Answer:Your answer for this question is D.
Explanation:
The purpose of the part of the female reproductive system highlighted is to collect sperm; that is the last option (D), and after that, the sperm go to the female fallopian tube.
What is the female reproductive system?The female reproductive system is a complex network of organs and structures that work together to produce, transport, and fertilize an egg, as well as support the growth and development of a fetus during pregnancy. The primary organs of the female reproductive system are the ovaries, which produce and release eggs, and the uterus, which is the muscular organ where a fertilized egg implants and develops into a fetus.
Hence, the purpose of the part of the female reproductive system highlighted is to collect sperm; that is the last option (D), and after that, the sperm go to the female fallopian tube.
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A biologist studied a population of squirrels for 15 years. During that time, the population was never fewer than 30 squirrels and never more than 45. Her data showed that over half of the squirrels born did not survive to reproduce, because of competition for food and predation. In a single generation, 90% of the squirrels that were born lived to reproduce, and the population increased to 80. Which inference(s) about this population might be true?
A) The amount of available food may have increased.
B) The number of predators may have decreased.
C) The squirrels of subsequent generations should show greater levels of genetic variation than previous generations, because squirrels that would not have survived in the past will now survive.
Answers
As per the given scenario, the squirrels of subsequent generations should show greater levels of genetic variation than previous generations, because squirrels that would not have survived in the past will now survive. The correct option is C.
What is natural selection?Natural selection is an evolutionary mechanism. Organisms that are better adapted to their surroundings are more likely to survive and pass on the genes that helped them thrive. Species change and diverge as a result of this process.
As per the given scenario, the squirrels of subsequent generations should show greater levels of genetic variation than previous generations.
It is because squirrels that would not have survived in the past will now survive as the new generation have better adaptability than the previous one due to natural selection.
Thus, the correct option is C.
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3. Why are deforestation and overgrazing of livestock forms of land pollution? (0.5
point)
Answers
Deforestation and overgrazing of livestock are forms of land pollution because they both lead to significant degradation of soil quality and damage to the ecosystems they are a part of.
Deforestation involves the clearing of large areas of forested land, leading to soil erosion, loss of biodiversity, and changes to the water cycle. When trees are removed, the soil is left exposed and vulnerable to erosion by wind and water, which can lead to the loss of nutrients and topsoil. Deforestation also contributes to climate change by releasing large amounts of carbon dioxide into the atmosphere.
Overgrazing of livestock involves allowing too many animals to graze on a particular area of land, which can lead to soil compaction, erosion, and depletion of vegetation. When livestock graze on land beyond its carrying capacity, they can remove too much vegetation, making the soil more susceptible to erosion and degradation. Overgrazing can also lead to the spread of invasive species and the loss of native plant species, which can impact the overall biodiversity of the ecosystem.
In both cases, deforestation and overgrazing can lead to long-term damage to the land, reducing its ability to support plant and animal life and contribute to important ecological processes. As a result, these activities are considered forms of land pollution.
the organisms that feed on dead and decaying matter are called
A. Saprotrophs
B. Autotrophs
C. Heterotrophs
D. Parasite
Answers
The organisms that feed on dead and decaying matter are called Saprotrophs.
An organism that feeds on dead and decaying organic matter is called a saprotroph. These organisms are heterotrophic, which means that they obtain their food from other sources. They are important in the ecosystem because they break down dead organic matter and recycle it back into the soil, making nutrients available to other living organisms
Answer:
A. Saprotrophs
Explanation:
Saprotrophs are organisms that obtain their nutrients by feeding on dead and decaying matter. They play a crucial role in the ecosystem by decomposing organic material and recycling nutrients back into the environment.
These organisms secrete enzymes that break down complex organic compounds into simpler substances, such as sugars and amino acids, which they can absorb and utilize for their own growth and energy needs. Examples of saprotrophs include fungi (such as mushrooms and molds) and certain bacteria.
Unlike autotrophs, which can produce their own food through photosynthesis or chemosynthesis, saprotrophs rely on external sources of organic matter for their nutrition. They actively decompose dead plants, animals, and other organic materials, aiding in the process of nutrient recycling and decomposition.
Heterotrophs, on the other hand, are a broader category of organisms that obtain their nutrients by consuming other living or dead organisms. This includes saprotrophs, as well as other types of organisms such as herbivores, carnivores, and omnivores.
Parasites, meanwhile, are organisms that live in or on other organisms, known as hosts, and obtain their nutrients from the host while causing harm or damage to it. Unlike saprotrophs, parasites typically rely on a living host for their sustenance rather than feeding on dead and decaying matter.
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What molecules does a plant need to make glucose in the process of photosynthesis?
Choose ALL correct answers.
a. oxygen
b. light
c. water
d. carbon dioxide
Answers
Answer: carbon dioxide and water.
Explanation: I took the test
Question 1
1 pts
A drop of blood returning from the big toe would enter the heart through what vessel?
O Pulmonary veins
O Coronary sinus
Inferior vena cava
O Azygous vein
O Superior vena cava
Answers
Answer:
The inferior vena cava
Explanation:
A drop of blood returning from the big toe would enter the heart through the inferior vena cava.
The inferior vena cava is a blood vessel that is located near the heart, with the aim of receiving the blood that has already traveled through the abdominal cavity and the lower extremities.
The inferior vena cava originates at the level of the pelvis, when the external iliac vein and the hypogastric vein come together to create a system that collects the blood waste that has already traveled both legs.Therefore, together with the superior vena cava and the coronary sinus, they are the ones that carry blood to the right atrium.Therefore, we can conclude that the superior vena cava collects deoxygenated blood that comes from the abdomen, pelvis, and lower limbs.
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HURRYYYY WILL GIVE BRAINLY. Even animals that live deep underwater require air to survive. Why is oxygen a necessity of life?
Answers
Answer: Oxygen fuels our cells and helps provide the basic building blocks that our bodies need to survive. Our cells combine oxygen with nitrogen and hydrogen to produce various proteins that build new cells.
Answer:
Explanation:
After watching the CrashCourse video on Taxonomy: Life's Filing System, write a summary of three things you
learned about taxonomy from the video. Zooalogy
Answers
Watching CrashCourse video, I learned the 3 basic elements of taxonomy, which are the three domains are Archea (formed by prokaryotic beings, such as archaea), Bacteria (formed by prokaryotic beings, such as bacteria and cyanobacteria) and Eukarya (formed by eukaryotic beings).
What is the concept of taxonomy?Taxonomy is the branch of biology responsible for identifying and classifying all animals and plants that inhabit the Earth, based on the different characteristics they share with each other.
What is taxonomy and examples?Taxonomy is the area of Biology that classifies, organizes and describes living beings. It is like a library that organizes each group into its categories, in an order that facilitates understanding and searching for features.
With this information, we can conclude that Taxonomy is a method used in biology to name, identify and classify living beings.
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A population is growing at a rate of 2,4,6,8,
Answers
Answer:
next is 10
Explanation:
There are three fluid-filed chambers within the cochlea. The middle cochlear chamber contains the organ of Corti and is called the _______ duct.
Answers
The middle cochlear chamber that contains the organ of Corti is called the "scala media" or "cochlear duct".
It is one of the three fluid-filled chambers of the cochlea, the spiral-shaped part of the inner ear responsible for converting sound waves into neural signals that can be interpreted by the brain. The scala media is located between the scala vestibuli and the scala tympani, which are the other two fluid-filled chambers of the cochlea.
The organ of Corti is located in the cochlea, which is a spiral-shaped structure in the inner ear. The cochlea is filled with fluid and lined with thousands of hair cells, which are specialized cells that are responsible for converting sound waves into electrical signals. The organ of Corti is located on the basilar membrane, which is a thin sheet of tissue that separates the fluid in the cochlea from the inner ear's fluid-filled vestibule.
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What is the primary reason organisms
undergo cellular respiration?
to get rid of wastes
to convert food to useable energy
to supply plants with carbon dioxide
+
to create energy from the sun
Answers
The primary reason organisms undergo cellular respiration is to convert food to usable energy.
Cellular respiration is a metabolic process that occurs in the cells of living organisms and involves the breakdown of organic molecules, such as glucose, to release energy in the form of ATP. This process is essential for cells to carry out their normal functions and for organisms to maintain their life processes.
Cellular respiration involves a series of reactions that break down glucose into smaller molecules, which are then used to generate ATP. During this process, oxygen is consumed and carbon dioxide is produced as a waste product. The process of cellular respiration is an efficient way for cells to convert the energy stored in food molecules into usable energy, which is essential for cell growth, repair, and reproduction.
In contrast, photosynthesis is the process by which plants and some bacteria use energy from sunlight to convert carbon dioxide and water into glucose and oxygen. This process is essential for plants to produce their own food and to release oxygen into the atmosphere.
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A car starts from rest and gains a velocity of 20 m/s in 10 s. Calculate acceleration and average velocity.
Answers
The acceleration of the car is 2 m/s².
The average velocity of the car is 2 m/s.
How to calculate acceleration ?The equation acceleration = (final velocity - beginning velocity) / time can be used.
Given:
Initial velocity (u) = 0 m/s (since the car starts from rest)
Final velocity (v) = 20 m/s
Time (t) = 10 s
Using the formula, we can substitute the values:
acceleration = (20 m/s - 0 m/s) / 10 s
acceleration = 20 m/s / 10 s
acceleration = 2 m/s²
Therefore, the acceleration of the car is 2 m/s².
You can use the following equation to determine the average velocity: average velocity = total displacement / total time.
The initial position and the final position are identical since the automobile begins at rest. As a result, the displacement and the ultimate position are equal.
Given:
Displacement = 20 m
Time (t) = 10 s
Using the formula, we can substitute the values:
average velocity = 20 m / 10 s
average velocity = 2 m/s
Therefore, the average velocity of the car is 2 m/s.
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Several tissues grouped together and working as a unit are called
Answers
Answer:
Several tissue groped together and working as a unit is called organ.
Explanation:
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Answers
When are the evolutionary effects of genetic drift the greatest?
The population size is small
The population size is large
$exual selection occurs
Intraspecific competition is weak
Answers
Answer:
The population size is small
Explanation:
If population size is small, the genetic diversity is low. Thus, genetic drift overtime results in individuals with very similar genotype. This is bad news because if a particular disease affects suppose organism with AA genotype and due to genetic drift all members are AA, then all the organisms might be decimated and extinct.
Answer:
population size is small
Explanation: