Human subjects in clinical trials, hope this helps :)
(an 18 year old died in a gene experiment, pennsylvania)
Answer:
Brainly and wikipedia sometimes
Explanation:
it helps you to understand better on Brainly and on wikipedia it sometimes give you the right and wrong answers
Answer:
Its A. ( I also took the test )
Explanation:
It is the only one that would be appropiate if you think about it.
Answer:
It is important because it keeps the other animals in check.
Explanation:
They keep the animals in check so there isn't an overpopulation of a certain animal.
Let's take sea otters for an example, the sea otters keep the sea urchins in check so they don't eat all the kelp. When there was a massive decrease in sea otters due to orcas eating them, the kelp was disappearing and the sea urchins were growing in population.