The method of contracting an illness after touching a contaminated doorknob, diaper or

handkerchief is
a. direct contact.
b. indirect contact.
c. inhalation contact.
d. contact with a vector.
e. retro-contact.


B

Biology & Microbiology

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The citric acid cycle is a cycle because the starting molecule, _____, is regenerated at the end

A. acetyl-CoA B. oxaloacetate C. fructose 6-diphosphate D. pyruvate E. citrate

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During fasting, cortisol promotes utilization of fats by stimulating the conversion of proteins to amino acids in muscle.

a. true b. false

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Convergent evolution resulted in placental and marsupial mammals with similar structural features. Indicate whether the statement is true or false

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Turgor pressure is observed when a plant cells environment is ________.

A. hyperosmotic B. hypoosmotic C. isosmotic D. osmosis

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