Hello there!!
The answer, I think, would be A.
UV radiation can create problems in the correctness of cell replication, which can result in mutated cells.
I hope this answers your question!
Answer : Option A) He asked what would happen if he deliberately inoculated someone with cowpox fluid from another person.
Explanation : Edward Jenner wanted to know what would happen if he deliberately inoculate the cowpox fluid from some person to another. He tested this experimental results and later on came up with the hypothesis. Which roughly state that someone will not get smallpox because they already had cowpox.
The answer is D. competition
Answer:
Similarly, leaves on a tree are reddest on the sunny side. ... As chlorophyll is destroyed, the green color of the leaf fades, leaving behind the yellow color of the carotenoids. In some trees, anthocyanins form in autumn, and these pigments cause the yellowing leaves to turn first orange and then red
Hope this helps :)
