Answer:
Both DNA and RNA have four nitrogenous bases each—three of which they share (Cytosine, Adenine, and Guanine) and one that differs between the two (RNA has Uracil while DNA has Thymine).
Explanation:
The dna is the basic unit of structure and function in living things
The three most abundant elements found in earth’s crust that combine to form minerals are oxygen (46.6%), silicon (27.7%), and aluminium (8.1%). These three most abundant element forms most of the minerals of the earth crust.
That evolution accord as dramatic/ rapid changes after periods of no change. Meaning their was no change over the years of humans fossils and living humans