Answer:
C
Explanation:
I had this question for a test and I got it right
Answer:
they are all heterotrophic
Geologic Time Scale.Scientists decide when an era begins<span> and </span>ends<span>, due </span>to<span> mass extinction. ...</span>Scientists determine<span> when drastic changes </span>are<span> made by the fossil record, which shows earths past organisms that have become extinct.</span>
A=t g=c so if you have gta-gca the opposite strand would be cat-cgt.