Even the cell membrane is like the cell wall its flexible and lets certain things in and certain things out.
I think it might be the first one: hiv infections. (hope this helps!)
Answer:
Among vertebrates, external fertilization is most common in amphibians and fish. Invertebrates utilizing external fertilization are mostly benthic, sessile, or both, including animals such as coral, sea anemones, and tube-dwelling polychaetes. Benthic marine plants also use external fertilization to reproduce.
= Fish
Explanation:
Explanation:
Owl has the role of the tertiary (third) consumer, in above food web.