Answer: I'm sure it's genetic engineering
Explanation:
Answer:
The ozone layer in the stratosphere blocks out the sun's deadly ultraviolet rays. It acts as our planet's natural sunblock.
Answer:
Explanation:i say B hope this helps
Hello this is estrogen levels.
Hope this helps<3
Answer:
D
Explanation:
adaptations are passed down in natural selection but it’s not in start stop fashion