The single greatest threat to biodiversity comes from ________

A) habitat destruction and fragmentation
B) invasive species
C) overexploitation
D) pollution


A

Biology & Microbiology

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Four of the five conditions listed below are caused

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Because enzymes affect the speed of chemical reactions without being consumed, they are referred to as:

a. catalysts. b. cytochromes. c. activation energy. d. hydrogen acceptors. e. transformation proteins.

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The beating of cilia and flagella occurs by means of _______-based _______.

a. dynein; microtubule sliding b. kinesin; microtubule sliding c. myosin; microfilament sliding d. tubulin; microtubule contraction e. dynein; microtubule contraction

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________ isolating mechanisms include improper development of hybrids and failure of hybrids to become established in nature.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology