As water freezes, ________
A) its molecules move farther apart
B) it cools the surrounding environment
C) its hydrogen bonds break apart
D) it loses its polarity
A
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What does it mean when it is said that the tree of human evolution is shallow?
A. that only humans that have the same ethnicity will share a recent common ancestor B. that humans haven't evolved much C. that all humans, no matter how distantly related they are, share a recent common ancestor D. that only humans on the same continent will share a recent common ancestor E. None of the answer options is correct.
The cross GE/ge × ge/ge produces the following progeny: GE/ge 404; ge/ge 396; gE/ge 97; Ge/ge 103. From these data, one can conclude that ________
A) the G and E loci reside on the same chromosome over 50 map units apart B) the G and E loci are segregating independently C) the G and E loci assort independently D) the G and E loci are linked E) the G and E loci show complete linkage
The most probable consequence of ozone depletion is
a. global warming. b. an increase in skin cancers. c. eutrophication. d. fish kills in shallow lakes. e. groundwater contamination.
Mutations in genes that affect __________ may cause morphological shifts in a lineage. Fill in the blank(s) with the appropriate word(s)