Blood vessels called ___ carry blood back to the heart.

What will be an ideal response?


veins

Biology & Microbiology

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Giant cells are

A. a fusion of B cells. B. a fusion of T cells. C. used to contain bacterial infections. D. activated T helper cells. E. a fusion of T cells AND used to contain bacterial infections.

Biology & Microbiology

During exercise, which pathway produces the

most energy?

a. lactate fermentation b. anaerobic respiration c. aerobic respiration d. use of stored ATP e. all of these produce the same amount of energy

Biology & Microbiology

Which of the following is NOT involved in the

nitrogen cycle? a. denitrification b. weathering c. nitrogen fixation d. ammonification e. decomposition

Biology & Microbiology

Microbes are energetically powerful!

What will be an ideal response?

Biology & Microbiology