Rabies and Ebola are the two viruses that infect all the vertebrates included in the interactive.
-Ebola is a virus that cause Ebola hemorrhagic fever that is a viral hemorrhagic fever of humans and other primates. Rabies virus causes rabies in humans and animals, which is a viral infection that mainly spreads through a bite from an infected animal.
The two viruses that are capable of infecting vertebrates affect humans and animals. These are studied in medical virology and veterinary virology. There are many kinds of animal and human viruses that are destructive. Sometimes, human even used viruses to control population growth of animals.
Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation, including mutation and genetic recombination.
The direct source of energy to move the sailboat is probably wind, since wind is what pushes the sail of the sailboat, which is what propels the sailboat forward.
