The Hershey and Chase experiment concluded the same by labeling the DNA of the parents with phosphorous and found out that the DNA of the offspring also bear phospho- labeled DNA, which established the fact that DNA is the heritable information source. So, your answer is B.
Physical anthropologist John Hawks and colleagues suggest that evolution is speeding up as population sizes are being continued to mushroom and new mutations which are endorsed.
Human population increased rapidly. The increase began those days of upper Paleolithic which is documented by archaeological evidence.
There is a huge amount of precipitation among the countries situated in the tropical region such as Hawaii or any other tropical island due to its climatic conditions. Since a tropical region receives heat from the Sun directly, the region would eventually be warmer causing more frequent evaporation causing rain.
I think the answer is A
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