It can spread to other parts of the animal and then contaminate other of its fellow species and then predators may get that disease and humans may eat the anamal to be further contaminated and so on
The correct answer is water
Answer: some viruses are contagious which makes them more dangerous than viruses that are not contagious
Explanation:
The first one is commensalism. The second one is mutualism. The last one is parasitism.