Humans have species resistance to feline immunodeficiency virus for which of the following reasons?

Human cells do not have the chemical receptors required for attachment by feline immunodeficiency virus.
Feline immunodeficiency virus is a nonpathogenic virus.
Human phagocytes are extremely effective at eliminating feline immunodeficiency virus from the body.
Human cells produce a special type of interferon that protects against feline immunodeficiency virus.

Human cells do not have the chemical receptors required for attachment by feline immunodeficiency virus

Explanation:

Feline immunodeficiency virus is a virus which causes immunodeficiency in the cats worldwide that is they use the cat as a host to replicate themselves by using their DNA replication machinery.

The feline virus does not affect the humans or they cannot affect the humans and this could be accounted to the reason that human body does not have the receptors which allow the cell to surface interaction between the body and the virus. Since a virus does not get attached to the body, therefore, cannot affect the humans.

Thus, the selected option is correct.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: