Shock (circulatory) Shock is the state of not enough blood flow to the tissues of the body as a result of problems with the circulatory system.
Laboratory mice are similar but not identical to each other. (apex)
Ribosomal ribonucleic acid
Protozoa are single-celled eukaryotic organisms. Many aquatic animals feed on protozoa. Protozoa help control the population of bacteria as well as other protozoans by feeding on them. Controlling the population of other organisms is important in maintaining ecological balance and diversity.