Question

Viruses multiply by:

reproducing themselves
dividing
altering the cell that they occupy
budding

Answer 1

This would depend on the virus, either they are going to be lysogenic or lytic. Either way I would assume they mean for you to answer with C. although it is not entirely correct.

Answer 2

thanks i hate science

Answer 3

Protozoan infection is not likely to be transmitted by:

Answer 4

dog bite
direct contact
breathing
eating

Answer 5

Awe, science is awesome!
As for this question, I don't like it more than the previous one. But I'm going to assume there aren't many protozoans in dog mouths and assume A.
Of course, we can think of the opposite:
It is likely to contract a protozoan from direct contact and eating --breathing, not so much... but I would think that it would be more likely to find an aeroprotozoa than one in a dog's mouth