variation in the relative frequency of different genotypes in a small population, owning to the chance disappearance of particular genes as individuals die or do not reproduce
What will be an ideal response?
genetic drift
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A coarse-grained, shiny, foliated metamorphic rock that exhibits well developed mineral cleavage is classified as a
A) hornfels. B) slate. C) schist. D) phyllite.
Using ice core samples and analyses, researchers have discovered that over the past 800,000 years
A) glaciers were greatest when greenhouse gases increased the most. B) the Earth has gradually been warming and sea levels have been rising. C) there is a strong correlation between global temperatures and greenhouse gases. D) atmospheric levels of methane and carbon dioxide have steadily been increasing.
The philosophy of the Endangered Species Act primarily reflects
A) political values. B) instrumental values. C) intrinsic values. D) economic interests.
Eicosane is a 20 carbon alkane. How many hydrogen atoms are in eicosane?
A) 38 B) 40 C) 42 D) 44