What reptilian taxon is extant (has at least some members that are still living; opposite of extinct)?

A. Saurischia
B. Ornithischia
C. Squamata
D. ichthyosaurs
E. theropods


Answer: C

Biology & Microbiology

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What happens when rocks are newly exposed (or created) in an area?

a. k-selection b. r-selection c. primary succession d. secondary succession

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Evidence shows that some grasses benefit from being grazed (eaten by herbivores). Which of the following terms would best describe this plant-herbivore interaction?

A) parasitism B) competition C) predation D) commensalism E) mutualism

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The primary function of the loop of Henle is 

A. removal of glucose. B. removal of water from the nephron. C. secretion of hydrogen ions. D. to produce liquid for the nephron.

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