Organisms That Are Parasites

Organisms that are parasites

A) are classified as either viruses, bacteria, or protists.
B) are classified as viruses, bacteria, protists, or animals. There are no plant parasites.
C) are found only on host animals.
D) are only found on one type host for their entire life span.
E) are found in all kingdoms, and will sometimes use more than one host during its lifetime.