The answer is D because the layers all the way at the bottom had to be there for other layers to be built on top
If you sequence the dna of human as well as chimpanzees almost 99% of the sequence are similar showing they are phylogenetic related
Genetic variation is advantageous because it enables some individuals and, therefore, a population, to survive despite a changing environment.
I am learning about that I think it is A
if I am wrong then sorry
hope this helps have a nice day
I believe the correct answer from the choices listed above is option C. <span>Most of Earth’s dry air is made up of nitrogen and oxygen. Approximately, air is made up of 21 percent of oxygen and 79 percent of nitrogen. Hope this answers the question. Have a nice day.</span>