1. what is the fish population

3,500,000,000,000 (3.5 trillion) fish

Explanation:

check for the pregnancy rating of drug. if its class c or d see if other alternatives

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.