It is c your answer for your questions
The branch of biology dealing with interactions along organisms and between organisms and their environment is called Ecology, I believe.
Answer: A. Zidovudine (Retrovir) and emtricitabine (Emtriva)
Explanation:
Basic postexposure prophylaxis (PEP) therapy typically includes treatment with one of these combinations of pharmacologic agents:
Zidovudine (Retrovir) and emtricitabine Emtriva),
Lamivudine (Epivir) and tenofovir (Viread), or
Tenofovir (Viread) and emtricitabine (Emtriva)
If the accidental exposure is especially severe, a third agent may be included.
<span>Naturally occurring in both humans and bacteria and functions in DNA replication. The process of DNA Replication is extremely complex. Especially in humans, and needs specific molecules, like ligase, to be done. This molecule can be found in other species too.</span>