The leading cause of extinction by human activities worldwide is

A) habitat fragmentation.
B) predation.
C) pollution.
D) invasive species.
E) overexploitation.


A

Biology & Microbiology

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Which of the following is not a common mechanism by which antifungal agents work?

A) by binding with cell membrane sterols B) by blocking nucleic acid synthesis C) by dissolving hyphae D) by interfering with sterol synthesis

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Which of the following would have the most difficulty entering a water lattice?

a. table salt (NaCl) b. a nonpolar molecule c. a sodium ion d. a proton (H+) e. an electron

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Which of these organisms is NOT included in the Eukarya?

a. heterotrophic bacteria b. heterotrophic protists c. fungi d. animals e. plants

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Science is based on

a. faith. b. authority. c. evidence. d. force. e. consensus.

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