About __________ of documented animal extinctions have been of invertebrates.

a. 50%
b. 10%
c. 20%
d. 80%
e. 90%


Answer: a. 50%

Biology & Microbiology

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Which of the following lists the organization of a mammalian body from least to most complex?

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A sequence of DNA could have ________ possible reading frame(s).

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The smallest population that fits specifications of a conservation plan is a(n) ____

a. target population b. endangered population c. minimum viable population size d. an entire ecosystem e. threatened species

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Which of the following is NOT a documented biological result of global warming?

a. Warm-adapted marine species are becoming more common and cold-adapted species less common. b. Plants display earlier flowering and growth. c. Alpine butterflies are shifting their distribution 6.1 meters higher in altitude per decade. d. Animals display earlier migration and breeding. e. Massive animal extinction.

Biology & Microbiology