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