Natural selection is the correct answer
Answer:
Remember this thing.
Explanation:
Our body can use skeletal muscle contractions to maintain body temperature when we are cold, but excessive contractions can lead to the body overheating to the point that the body's metabolic reactions are interrupted.
Neither of these is true the density of water goes down was it freezes
Answer:
There are many differences between animals and plant cells. Some are structural to the way animals and plant cells function. Besides strucutre, what plant cells need as opposed to animal cells is different. Let me know what you come up with and I will gadly help you figure it out.
Explanation: