All of the following may help begin an ice age EXCEPT .
A. volcanic eruptions
B. Earth's...
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The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.
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How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?
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Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?
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