Hummingbirds are examples of animals that are ________

a. endotherms
b. ectotherms
c. none of the choices
d. heterotherms


d

Biology & Microbiology

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Thermoplasma contains an extremely small genome complexed with a highly basic DNA-binding protein

Indicate whether the statement is true or false.

Biology & Microbiology

The use of any chemical in the treatment, relief, or prophylaxis of a disease is called ________.

A. selective toxicity B. prophylaxis C. chemotherapy D. nephrotoxicity E. synergism

Biology & Microbiology

The Intergovernmental Panel on Climate Change reported in 2007 that atmospheric carbon dioxide levels will nearly double by the end of this century. If this happens, what will be the atmospheric concentration of carbon dioxide?

A. 700 ppm B. 2.0 ppm C. 560 ppm D. 385 ppm E. 3.5 ppm

Biology & Microbiology

The electron transport chain provides the energy for

A) oxidative phosphorylation. B) substrate-level phosphorylation. C) beta-oxidation. D) photophosphorylation. E) anabolic reactions.

Biology & Microbiology