Answer:
Homeostasis refers to the body's ability to maintain a stable internal environment. Maintaining homeostasis requires that the body continuously monitors its internal conditions.
I would say (B) - because if they are all identical, they lack variation. If a new disease were to affect the identical organisms in a population, they would all be wiped out, therefore stopping natural selection from occurring.
Answer:
????
Explanation:
None of those seem to be correct to me.
1. Observations are made using the five senses- sight, sound, touch, taste, and smell. So this is invalid.
2. Observations and experiments can both be done anywhere
3. See answer to 2
4. It's cut off? But observations can literally be as simple as looking at a stick and noting that it's brown, so from what I can read, it's invalid.
I believe the answer is a. crossing over