If you wanted to manufacture a fat, which one of the following would be necessary? 

A. water
B. amino acids
C. vitamins
D. glycerol


D. glycerol

Biology & Microbiology

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Wavelike movements that propel food through the digestive system are called:

a. peristalsis b. contractions c. muscle propulsion d. cilia beating e. microvilli and villi motion

Biology & Microbiology

After the centromeres separate during mitosis, the chromatids, now called _______, move toward opposite poles of the spindle.

a. centrosomes b. kinetochores c. half-spindles d. asters e. daughter chromosomes

Biology & Microbiology

Which of these trends occurred first in hominid evolution?

A) bipedalism B) tool use C) large brain D) writing

Biology & Microbiology

Seventy percent alcohol is effective against

A) enveloped viruses. B) nonenveloped viruses. C) bacterial endospores. D) protozoan cysts. E) prions.

Biology & Microbiology