Each day the human heart sends about _____________ liters of blood throughout the body.

A. 50,000

B. 1,000

C. 7,000

D. 2,000

E. 5,000


C. 7,000

Biology & Microbiology

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When proteins are used as energy sources, their breakdown subunits usually enter ____

a. glycolysis b. electron transfer chain c. the Krebs cycle d. alcoholic fermentation e. lactate fermentation

Biology & Microbiology

In glycolysis, glucose receives two phosphate groups from ____, thus forming fructose-1, 6-bisphosphate

a. ADP b. ATP c. G3P d. a bisphosphate group

e. fructose-1, 6-bisphosphate

Biology & Microbiology

What condition is necessary for genetic drift to have a significant effect on a population?

a. A natural disaster must occur. b. The population needs to be small. c. A portion of the population needs to migrate. d. Mutation must occur. e. Gene flow must occur.

Biology & Microbiology

A gene that is located on a sex chromosome (X or Y chromosome) is _______.

A. the cause of albinism and cystic fibrosis B. a sex-linked gene C. a linked gene D. usually a sex-determining factor

Biology & Microbiology