Which to systems of the human body interact to maintain homeostasis by utilizing white blood cells against invaders? A immune and circulatory
B
respiratory and cardiovascular
C
endocrine and immune
D
cardiovascular and integumentary

Although there are a limited number of amino acids many different types of proteins exist because..

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

Hairs that clean dirt out of the air in your nasal passages are called: a. sinus b. trachea c. cilia d. mucus