4. DNA sequence comparison
5. Random mutations
An astronomical unit (AU) is the approximate distance from the earth to the sun. The answer is D.
Answer: I think it's the third one: Letter Q points to the guard cell. Letter T points to the stomata and the response is most likely due to the humid tropical nature of the enviorment.
Cells are the basic unit of structure and function in organisms.
Needless to say, organisms can’t be a thing if cells didn’t exist.
The answer is BbEe, and Brainly needs more than 20 characters
