A control group is a group that does studies or Experiments that does not receive treatment by researchers and is then used as a benchmark to measure how the other tested subjects do. Ex: Experimenting Arizonas and water together.
Biotic means that it came from or has been produced/has been in relation with an organism. So your answer would be THE BACTERIA THAT LIVES IN THE INTESTINE OF A RABBT, it was the interaction of 2 things within them selves.
Answer:
The reason why the final answer may be surprising to a lot of people is that
Onion is not a fruit, it is a vegetable while banana is a fruit; likewise, lemons and they are both yellow fruits.
Because they are both yellow fruits, one may have the thought that a lemon and a banana are more closely related.
It may also be confusing to lots of people because some plants that produce vegetables are more closely related to plants that produce fruits and it goes vise versa.
Answer: It would unbalance the ecosystem.
Due to the fact that if some species die off, the other species that rely on those species for food or protection would loose that food/ protection which may lead to their extinction and their extinction would lead to another extinction and so on.