All medical research is carefully planned, and this includes medical
research with animals. Experts who review a scientist’s proposed
experiment involving animals weigh several considerations before
approving each study.
The most important thing is that the research must be relevant
to human or animal health. Studies need to protect the animals’
welfare. That means that only the fewest number of the most
appropriate species may be used. Under federal law, all animals
must be treated humanely and undergo the least distress possible
Answer:
Negative Feedback
Explanation:
Negative feedback is a stimulus that cause the system to move in the opposite direction of what has happening. For example if your are cold, you will shiver in order to create heat that will cause your body temperature to increase. But if you are hot you will sweat which will cause your body temperature to decrease.
Explanation:
A. Adhesion
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Answer:
They break down dead organisms and recycle nutrients. They directly help to maintain the population sizes of different predators. They primarily eliminate toxins from the water that can harm phytoplankton.
Explanation:
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