the answer is c. resting
Bacterial cell walls are made of peptidoglycan (also called murein), which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids. Bacterial cell walls are different from the cell walls of plants and fungi which are made of cellulose and chitin, respectively.
b. the heart, blood vessels, and lymph vessels.
c. blood, blood vessels, and the heart.
d. blood, blood vessels, the heart, lymph, lymph vessels, and lymphatic tissues.
Both organisms benefit from a relationship
One organism feeds off another, making it weak or killing it
Both organisms are hurt from a relationship
b. made of muscle and very strong.
c. surrounded by a hard shell.
d. controlled by fluid pressure. Reset Selection