I think the first one is right !.... but the for the other one it's B .
the answer is the sympathetic nervous system i got that answer on my test
I would go with 4 that's what makes the most sense to me, and i just learned about this last year so... I hope this helps good luck..
Answer:
reverse transcriptase (RT) is an enzymeused to generate complementary DNA (cDNA) from an RNA template, a process termed reverse transcription. Reverse transcriptases are used by retroviruses to replicate their genomes, by retrotransposon mobile genetic elements to proliferate within the host genome, by eukaryotic cells to extend the telomeres at the ends of their linear chromosomes, and by some non-retroviruses such as the hepatitis B virus, a member of the Hepadnaviridae.
Explanation:
brainliest appreciated
