DNA is verry important to life. It is the instructions or the blueprints of how to make (and makes up) the organism. Without it life as we know it is just not possible.
Answer:
Part A: Fossil Evidence
Part B: Biogeographical Evidence
Part C: Anatomical Evidence
Explanation:
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The DNA has to code for a protein and it has to replicate
I believe it would be chemical
Answer:
C) extra chromosome; nondisjunction
Explanation: