What naturally occurring process is responsible for keeping the earth warm enough to sustain life?
A. Oceanic currents
B. Increasing biodiversity
C. Greenhouse effect
D. Variable microclimates
E. Atmospheric circulation
C. Greenhouse effect
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Assuming complete dominance, what is the expected ratio of genotypes of the offspring following the cross of two heterozygotes?
A. 1:1 B. 4:1 C. 1:2:1 D. 3:1
Dominant species tend to be more abundant than other species because they
A) prey upon or parasitize other species. B) outcompete other species. C) are preyed upon less than other species. D) reproduce more rapidly than other species.
Most interspecific interactions are exclusive, involving only two species
Indicate whether the statement is true or false
The phosphate group is a nonpolar group
__________________Indicate whether the statement is true or false.