The stress of exercise in a hot environment depends on both the ambient temperature and the humidity.

a. true
b. false


a. true

Biology & Microbiology

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The regeneration of ATP

a. is an example of an endergonic reaction. b. requires inorganic phosphate. c. occurs through the ATP/ADP cycle. d. is not the result of entropy. e. is/does all of these.

Biology & Microbiology

The three steps, in order, of the Calvin Cycle are:

a) fixation of CO2, sugar creation, regeneration. b) sugar creation, regeneration, ATP production. c) ATP production, the electron transport chain, and fixation of NADPH. d) the splitting of water, the electron transport chain, the passing of electrons to NADP+. e) regeneration, fixation of NADP+, sugar creation.

Biology & Microbiology

All of these answers are true of A-B exotoxins except __________.

A) tThe B portion of the toxin binds to surface receptors on host cells B) they consist of two polypeptide components C) many exotoxins are A-B toxins D) the A portion of the toxin is the active component E) they are produced only by gram-negative bacteria

Biology & Microbiology

Most examples of polyploidy speciation involve

A. plants. B. mammals. C. arthropods. D. prokaryotes. E. fungi.

Biology & Microbiology