Answer: The answer is .007 I believe. If I'm right please mark me brainiest
Explanation:
I just took the test and some teachers are taking .008 but some only take .007 so yea
A) Crossing over is the mechanism of genetic variation that results from the exchange of gene segments between non-sister chomatids.
Adaptions to collect and retain water - thick, non-pourous stems, not leaves, but thick lobes and the ability to store water until its needed.