Some fish species live and travel in groupings, known as a school. This type of population distribution can be considered

Ithink that b is correct but just in case wait to see if someone else answers

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

This is the most closely resembles the model. 

Iwolud you, but i dont know what you are asking.