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te falta la tabla
colocala master
Related Questions
Why do male mammals risk having the testicals outside the main body?
Answers
Reason - the temperature of the testicles needs to be cooler than the inside of the body to produce sperm. This is why the testicles are located outside of the body.
The Arizona poppy has adapted to living in areas that receive less rain, but there are still periods of time that a drought occurs. What part(s) of photosynthesis would the plant not be able to perform if there is no rain? What would be the long-term effects on the plant if the drought were to continue? Explain your answer.
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If there is no rain, the Arizona poppy would not be able to perform the light-dependent reactions of photosynthesis.
What are the stages of photosynthesis?Photosynthesis is a process that involves two main stages: light-dependent reactions and light-independent reactions.
Water is required in the light-dependent reactions to provide the electrons that are needed to generate ATP and NADPH, which are then used in the light-independent reactions to produce glucose.
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(c) Predict the growth rate pattern of the E. coli-M bacteria when they are initially added to the growth medium if the mutation does not interfere with glucose utilization.
(d) Provide reasoning to justify your prediction.
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The question is incomplete. The complete question is :
Glucose is the preferred carbon source for Escherichia coli bacteria. Researchers isolated E. coli-M, a strain of E. coli with a single mutation that inactivates a key enzyme in one of the three glycolytic pathways E. coli bacteria use to break down glucose. In an initial experiment to study the effect of the mutation on glucose utilization and ATP production by the bacteria, the researchers add 2×104 E. coli-M bacteria to 400 mL of a growth medium that contains glucose. To measure the rate of bacterial growth, they monitor the optical density of the culture as a measure of bacterial concentration over time.
(c) Predict the growth rate pattern of the E. coli-M bacteria when they are initially added to the growth medium if the mutation does not interfere with glucose utilization.
(d) Provide reasoning to justify your prediction.
Solution :
c). It is given that Glucose is preferred as the carbon source for the Escherichia coli bacteria or the E. coli-M bacteria. If the growth medium of the E. coli-M bacteria contains a higher concentration of the acetate, then the growth of the bacteria will inhibit without inhibiting the central metabolism.
d). This is predicted because as E. coli-M bacteria grows, it starts secreting acetate. This is known as overflow mechanism. The regulatory interactions mediated by the acetyl-phosphate that plays an important role in the inhibiting growth by the acetate.
Which term refers to the component of hemoglobin that binds oxygen?
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Name the component of hemoglobin that binds oxygen? Heme
Normally, igneous and metamorphic rock
are great materials from which to form aquifers.
are found throughout the United States.
are impermeable to water flow.
are very porous.
Answers
Answer: Impermeable to water flow
Explanation:
Describe the mangroves ecosystem and its role in sustaining the ecosystem in the food web or food chain
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Mangroves are coastal ecosystems that provide habitats, food, and protection for various species, supporting the food web.
The mangrove ecosystem is a unique and highly productive coastal habitat characterized by mangrove trees, which are specially adapted to survive in saline environments. Mangroves are typically found in tropical and subtropical regions along sheltered coastlines, estuaries, and intertidal zones.
Mangroves are vital in sustaining the ecosystem by providing various ecological services. One of their significant contributions is their role in the food web or food chain.
They serve as a critical nursery and feeding ground for a diverse range of marine species. The intricate network of roots, known as prop roots, provides habitat, protection, and feeding opportunities for numerous organisms, such as fish, crustaceans, mollusks, and birds.
The mangrove leaves and detritus that fall into the water serve as a source of organic matter and nutrients, fueling the base of the food web. Decomposers and detritivores break down the organic matter, which is then consumed by various organisms.
Small organisms, like zooplankton and small fish, feed on the decomposers and detritivores, becoming prey for larger predators such as fish, birds, and reptiles.
Furthermore, mangroves act as a buffer against coastal erosion and storm surges, protecting shorelines and adjacent habitats. They also contribute to water filtration, nutrient cycling, and carbon sequestration, and provide a habitat for numerous endangered and migratory species.
In summary, the mangrove ecosystem plays a crucial role in sustaining the food web or food chain by providing habitat, nursery areas, and food sources for a diverse array of organisms. Their presence supports the productivity and biodiversity of coastal ecosystems, making them an essential component of coastal environments worldwide.
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Which occurrence is an example of eustress (or good stress)?
A. getting fired from a job
B. failing a class at school
C. going away to college
D. losing a loved one
Answers
Answer:
Explanation: got it correct on edmentum
How does petrification link to how the oldest fossils are found in the lowest rock
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Answer:
Explanation:
In geology, petrifaction or petrification is the original material and the filling of the original pore spaces with minerals. Petrified wood typifies this process, but all organisms, from bacteria to vertebrates, can become petrified. Petrification (petros means stone) occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals. Researchers at UCLA and the University of Wisconsin–Madison have confirmed that microscopic fossils discovered in a nearly 3.5 billion-year-old piece of rock in Western Australia are the oldest fossils ever found and indeed the earliest direct evidence of life on Earth. The study, published Dec.
HELPPPPPP PLEASE AND QUICK
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The variable on the y-axis will always be dependent on the variable on the x-axis
What relationship can be determined from the following information: . The radioactive isotope iodine 131 has a half-life of 8.1 days and emits 0.8 MeV (milli-electronvolts) of energy . The radioactive isotope phosphorus 32 has a half-life of 14.3 days and emits 1.7 MeV of energy . The radioactive isotope phosphorus 33 has a half-ife of 25.5 days and emits 0.25 MeV of energy . The radioactive isotope sulfur 35 has a half-lfe of 875 days and emits 0.2 MeV of energy Multiple Choice O The longer the half-lIfe, the more energy emitted by the particles O The longer the hif ife the les energy emited by the porticles O Redotoopes of he same elemen must enst the same amountof energy in their emissions of the same element must emit the same amount of energy in their emissions and decay at the same rate. O Adjusted for time, radioisotopes emit the same amount of energy in their emissions O Energy and half-life are not directly related.
Answers
Option E: energy and half-life are not directly related, is the relationship determined from the given information about the radioactive isotope.
Half-life is the amount of time required by a nucleus if a radioactive isotope to lose half of its radioactivity. Each radioactive isotope has its own particular half-life that cannot be altered because of external and alternating factors like those of quantity and form of the material.
A radioactive substance is highly unstable and thus loses its energy by decaying. This means that the energy lost is directly proportional to the amount of the substance present. But energy of a radioactive substance is independent of it's half-life of decaying. This means that option E is the correct choice.
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sea otters are examples of a species
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Answer: yes
Explanation:they are keystone species
What is one relationship between the section "Dressing For The Lab" and the section "Making A Plan And Staying Focused"?
They both emphasize the importance of asking specific questions during experiments
They both show how to take useful notes on lab procedures and experimental results |
They both emphasize the importance of preparing for lab experiments beforehand.
They both show how to avoid possibly dangerous distractions during lab experiments.
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One relationship between the two sections; "Dressing For The Lab" and "Making A Plan And Staying Focused" is that; they both emphasize the importance of preparing for lab experiments beforehand.
How do you prepare for the laboratory?We know that the laboratory is a place where we perform experiments. Most of the experiments that we have to perform in the laboratory are either to confirm or to disprove a hypothesis. Sometimes, we carry out experiments to determine a law in science.
Now, we have two sections to consider; "Dressing For The Lab" and the section "Making A Plan And Staying Focused". One relationship between the two sections is that; they both emphasize the importance of preparing for lab experiments beforehand.
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explain coordination of the heart beat by pale maker
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The pacemaker, or sinoatrial (SA) node, is responsible for coordinating the heartbeat in the heart. It is located in the right atrium and generates electrical impulses that spread throughout the heart, causing it to contract and pump blood.
How does the pacemaker generate electrical impulses?The pacemaker generates electrical impulses through the movement of charged ions across its cell membrane. Specifically, it allows sodium ions to enter the cell, which triggers the release of calcium ions, leading to a depolarization of the cell and the generation of an action potential.
What happens if the pacemaker is damaged or malfunctioning?If the pacemaker is damaged or malfunctioning, the heart may beat too slowly or irregularly, leading to symptoms such as fatigue, dizziness, and shortness of breath. In some cases, a pacemaker may need to be implanted to regulate the heartbeat and prevent complications.
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Draw the dipeptide that results when a peptide bond is formed between two glycine molecules. Draw it as it would occur at the pH of most body fluids. I have asked this in the chemistry section and they have told me this is biology
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The -OH of one glycine molecule reacted to the H- of the next glycine molecule to form water.
Quagga mussels, an invasive species of mollusk originally from
Russia, have been introduced to the lake after being carried in on
the hulls of boats. An assessment of the size of the quagga
mussel problem is needed, along with suggestions to curb their
population growth.
what field of science is this?
Answers
This is a problem in the field of ecology.
The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.
It falls under the discipline of ecology, which studies the relationships between organisms and their environment.
Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.
In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.
They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.
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Which of the following is an environmental cost of commercial agriculture? A. Overconsumption of water B. Efficient milk production C. Crop rotation D. Primary food crops
Answers
Answer: A. overconsumption of water
Explanation:
Every other answer is a a positive
Which of the following bet describes Earth conditions during the Hadean?A. cold and dryB. covered with glaciersC. hot with lots of volcanoesD. active with many types of life
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The Hadean is considered the first division of the Precambrian, it starts with earth formation and ends with the Archean, lasting 567 million years. This eon is characterized by intense volcano activity, and a quite turbulent environment, nonetheless is in this era that is proposed the first traces of life, going from the first self-replicant molecules and protobionts to the last common ancestor. Taking this into account we can say that the correct answer is option C.
According to a large-scale study, pregnant women's caffeine intake was linked to which of the following in their offspring? a) Increased behavioral problems
b) increase reproductive success.
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According to a large-scale study, pregnant women's caffeine intake was linked to Increased behavioral problems
What are the effects of caffeine on pregnant women ?Limiting your caffeine intake is advised since excessive caffeine consumption during pregnancy may raise the risk of miscarriage or low birthweight. Numerous foods and beverages, such as coffee, tea, and cola, contain the chemical known as caffeine.
The consumption of caffeinated beverages has been linked to issues with fertility, and consumption during pregnancy has been linked to an increased risk of miscarriage, congenital abnormalities, foetal growth restriction, stillbirth, and behavioural issues in offspring over the long run.
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What can be inferred from this cladogram? Image showing a cladogram. Traits are listed on the main branch of the cladogram. Vertebral column is the first trait listed at the bottom of the main branch. Lancelet is the first branch coming off the main branch. It appears before the vertebral column trait. Jaws is the second trait listed on the main branch, after the vertebral column. Lamprey is the second branch coming off the main branch. It appears after the vertebral column and before jaws. Walking on four legs is the third trait listed on the main branch. Tuna is the third branch coming off the main branch. It appears after jaws and before walking on four legs. Amniotic egg is the fourth trait listed on the main branch. The salamander is the fourth branch coming off the main branch. The salamander branch appears after walking on four legs and before the amniotic egg. Hair is the sixth and last trait on the main branch. The turtle is the fifth branch that comes off the main branch after the amniotic egg and before hair. The leopard is the final branch coming off the main branch. The leopard branch appears after hair. The amniotic egg evolved before animals could walk on four legs. The organism most related to the turtle is the tuna. The salamander’s DNA differs the most from the leopard. The trait that separates the lancelet from the lamprey is the vertebral column.
Answers
From this cladogram, it can be inferred that:
The amniotic egg evolved before animals could walk on four legs.The organism most closely related to the turtle is the tuna.The salamander's DNA differs the most from the leopard.The trait that distinguishes the lancelet from the lamprey is the vertebral column.What is a cladogram?The cladogram is a phylogenetic tree that represents evolutionary relationships among species based on the presence or absence of particular traits.
Overall, the cladogram provides a visual representation of how species are related to one another based on the presence or absence of specific traits, and how those traits have evolved over time.
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Answer:
The trait that separates the lancelet from the lamprey is the vertebral column.
Explanation:
11. In the space below, draw a sketch to help you remember what negative feedback is.
Answers
Answer:
Click the file to view a picture that can be used as an example.
Explanation:
Please help me with this
Develop a plan for building a fish pond and include what kinds of fish and plants are suitable for the pond fish.
Answers
Building a fish pond can be a great addition to a backyard or garden and can provide an opportunity to keep and cultivate fish for recreational or commercial purposes.
How do you build a fish pond?Here's a plan for building a fish pond, along with some suggestions for suitable fish and plants:
Choose a suitable location: The first step in building a fish pond is to choose a suitable location. Look for a spot that is level and receives a good amount of sunlight. Avoid areas that are too close to trees or other sources of debris, as falling leaves and branches can contaminate the water.
Determine the size of the pond: The size of the pond will depend on the number and size of fish you plan to keep. A good rule of thumb is to have at least 100 gallons of water for every one inch of fish.
Dig the pond: Once you've determined the location and size of the pond, it's time to start digging. Use a shovel or backhoe to excavate the soil and create the shape of the pond. The depth of the pond should be at least 3-4 feet to ensure adequate water circulation and temperature regulation.
Install a liner: Once the pond is dug, install a liner to prevent water from seeping into the soil. Choose a high-quality liner made of EPDM or PVC to ensure durability and longevity.
Install a filtration system: To keep the water clean and healthy for fish, install a filtration system that includes a pump, filter, and UV clarifier. These components work together to remove debris, harmful bacteria, and other contaminants from the water.
Add suitable fish: When choosing fish for your pond, consider the size, temperature requirements, and compatibility of different species. Some suitable fish for a backyard pond include koi, goldfish, and trout.
Add aquatic plants: Aquatic plants can help to oxygenate the water and provide a natural habitat for fish. Some suitable plants for a fish pond include water lilies, water hyacinths, and duckweed.
Add decorations and lighting: To make the pond more attractive and enjoyable, consider adding decorative elements such as rocks, statues, and lighting.
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Why did people in England feel that it was reasonable that America paid more taxes?
Answers
Answer:
See below
Explanation:
The people in England felt that it was acceptable to make to colonists pay taxes because they felt that they still owned the colonists and could push them around as they wished. They also needed the money to pay for war debt. It was also a reaction to the protests that the Americans were performing.
Which of the following is an example of saturated fats?
A. Butter
B. Nucleotide
C. Vegetable oil
D. Rice
Answers
Answer:
A. Butter
Explanation:
Butter is a saturated fat. Saturated fats are usually solids at room temperature.
the answer to the question is butter
list the correct names next to each number in the hydrologic water cycle. use the textbook or writing tool
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The correct names next to each number in the hydrologic or water cycle is as follows;
1. Evaporation/Transpiration
2. Condensation
3. Precipitation
4. Surface runoff
What is water cycle?The hydrologic or water cycle involves the continuous circulation of water in the Earth-Atmosphere system.
Water is necessary to sustaining life on Earth, and helps tie together the Earth's lands, oceans, and atmosphere into an integrated system.
Precipitation, evaporation, freezing, melting and condensation are all part of the hydrological cycle. The correct names of the labelled parts in the diagram are as given above.
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Q3: Classify the parasites that cause human disease; give an example for each one
.and Mention the name of disease, location in host, and the mode
transmission of these parasites .
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Parasites that cause human disease can be classified into different groups based on their characteristics and the diseases they cause. Here are some examples:
1. Protozoa:
- Example: Plasmodium falciparum
- Disease: Malaria
- Location in Host: Plasmodium parasites reside and multiply within red blood cells.
- Mode of Transmission: Mosquitoes (Anopheles species) transmit the parasite to humans through their bites.
2. Helminths (Worms):
- Example: Ascaris lumbricoides
- Disease: Ascariasis
- Location in Host: Adult worms reside in the small intestine.
- Mode of Transmission: Ingestion of eggs present in contaminated food, water, or soil.
3. Nematodes (Roundworms):
- Example: Enterobius vermicularis
- Disease: Enterobiasis (Pinworm infection)
- Location in Host: Adult worms inhabit the large intestine, while females migrate to the perianal area to lay eggs.
- Mode of Transmission: Ingestion of infective eggs, which are usually transferred from contaminated surfaces or through direct contact with an infected person.
4. Trematodes (Flukes):
- Example: Schistosoma mansoni
- Disease: Schistosomiasis (Bilharzia)
- Location in Host: Adult worms reside in the blood vessels surrounding the intestines and liver.
- Mode of Transmission: Contact with water bodies infested with freshwater snails that release the parasite larvae, which can penetrate the skin of humans.
5. Cestodes (Tapeworms):
- Example: Taenia solium
- Disease: Taeniasis (Tapeworm infection)
- Location in Host: Adult worms reside in the human intestine, where they attach to the intestinal wall.
- Mode of Transmission: Consumption of undercooked or raw contaminated meat containing the larvae or ingestion of food or water contaminated with eggs.
It's important to note that this list provides only a few examples, and there are numerous other parasites that can cause diseases in humans. The diseases mentioned here represent a fraction of the many parasitic infections that can occur, and each parasite has its unique characteristics, geographical distribution, and mode of transmission. Proper diagnosis, treatment, and preventive measures are essential for managing these parasitic infections.
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Sea anemones are predatory invertebrates with stinging tentacles that can paralyze many sea animals. The clownfish is immune to the sting of the sea anemone and actually lives among its tentacles. The relationship is mutually beneficial—the clownfish often lures meat-eating animals over to the anemone, and the anemone benefits from the meal. The clownfish often gets to eat leftovers from the anemone’s meal.
When the clown fish is ready to lay eggs, it lays them near a sea anemone. How’s this a reproductive strategy?
Answers
The clownfish's reproductive strategy of laying eggs near a sea anemone is a form of protection and survival for its offspring.
By laying their eggs in close proximity to the sea anemone, the clownfish provide their eggs with a safe place to develop. The sea anemone's tentacles are a powerful defense mechanism that can fend off potential predators that may try to harm or eat the eggs.
In addition to protection, the clownfish also benefit from the relationship with the sea anemone during the reproductive process. The anemone provides a clean surface on which the eggs can be attached and also helps to oxygenate the surrounding water, which is important for the development of the eggs.
The anemone's tentacles also help to keep the eggs free of harmful parasites and fungi. Overall, the clownfish's reproductive strategy of laying eggs near a sea anemone is a mutually beneficial relationship that helps to ensure the survival of the clownfish offspring.
The protection and benefits provided by the sea anemone help to increase the chances of the eggs hatching successfully, resulting in a higher survival rate for the next generation of clownfish.
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Describe three ways in which the liquid contained in the ureter differs from the liquid contained in the renal artery
Answers
Answer: The three ways are listed below
Explanation:
Composition, The renal artery carries deoxygenated blood to the kidney, while the ureter carries urine after it has been filtered by the kidney. Urine contains waste products filtered from the blood, while the blood in the renal artery still has all its components.
Origin: The liquid in the renal artery originated from the heart as deoxygenated blood, while the liquid in the ureter originated from the renal tubules in the kidney as urine. They have different origins and histories.
Functions: The blood in the renal artery is essential for oxygenating the kidney and removing waste, while the urine in the ureter serves to transport the waste products filtered by the kidney out of the body for excretion. They serve very different functions.
Some additional notes:
• Urine contains waste materials like urea, creatinine, uric acid, etc. removed from the blood. The renal artery blood does not contain these waste products.
• The urine in the ureter is no longer useful for transportation of oxygen and nutrients. That is the purpose of the blood in the renal artery.
• The blood in the renal artery becomes deoxygenated after passing through the kidney, while the urine in the ureter remains oxygenated after being filtered.
• Manipulating the flow in the renal artery or ureter impacts the kidney differently. Reducing renal artery flow would damage the kidney, while reducing ureter flow would cause urine buildup.
• Urine volume and composition changes as it moves through the renal tubules and collects in the renal pelvis before entering the ureter. Blood composition remains largely unchanged as it passes through the kidney in the renal arteries.
Which of these meals would give you most of the nutrients that you need ?
1 .Meat, milk and a piece of chocolate
2 .Bread, vegetables and fish
3 .Vegetables, fruits and water
4 .Meat, fish and bread
Answers
Vegetables and fruits are excellent sources of vitamins, minerals, and dietary fiber, while water is essential for hydration. While the other options may contain certain nutrients, they might not provide as balanced and varied a nutrient profile as the combination of vegetables, fruits, and water.
Vegetables and fruits are rich in vitamins A and C, folate, potassium, and dietary fibers, while water keeps the body hydrated. Additionally, a diet rich in vegetables and fruits has been associated with reduced risk of chronic diseases such as heart disease, diabetes, and cancer.
While meat, milk, chocolate, fish, and bread are also important sources of essential nutrients, they do not provide the same variety and amount of nutrients as a diet rich in vegetables, fruits, and water. Furthermore, foods like meat and milk are high in saturated fat and cholesterol, which can contribute to chronic health problems if consumed in excess.
water makes up what percentage of our body weight?
Answers
Answer:
Water represents between half and two thirds of a person's average weight. Adipose tissue has a lower percentage of water than lean tissue, and women tend to have more fat, which is why the percentage of water in women is lower (52% to 55%) in relation to the average body weight of a male (60%).
Explanation:
Answer:
60% of the body is made up of water
Explanation:
During translation, the ribosome moves in which direction relative to the ends of the mRNA?
Answers
Answer:
The translation is affected by ribosomes moving along mRNA in the 5′ → 3′ direction. A set of tRNA molecules brings amino acids to the moving ribosome, their anticodons binding to codons exposed on the ribosome.
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