Answer:
The answer is D.
Thigmotropism is the way that a plant grows in response to touch.
Woolly mammoths are extinct
Honestly this subject is really really hard .. I wish I could help sorry
Answer: Natural selection can act on traits determined by alternative alleles of a single gene ... hope this helps, this is one of many answers for this question!
Answer:
Ozone layer... pollution
Explanation:
The ozone layer is a layer in the atmosphere which provides a barrier between harmful UV rays and the Earth. However, pollution is quickly depleting the layer which in turn creates a higher risk of skin cancers and other conditions caused by harmful UV rays.