<span>Species is a group of reproducing populations that are isolated from other groups. </span>
Viruses need to be inside a living thing (of course the living thing has to have the right temperature which most living things do) . When they're inside a living thing they start injecting the host's cells with its DNA in order to make more copies of itself which allows the virus to spread. So basically viruses need to be inside something living.
They both eat zooplankton I think
B is better because it has more surface area.
