Compared to modern humans, Neanderthals were ____
a. skinnier
b. shorter
c. more numerous
d. more widely dispersed
e. small brained
ANSWER: b
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Invasive Eurasian grass species can outcompete native North American grasses through
A. secretion of allelochemicals. B. producing more viable seeds. C. producing seeds year-round. D. avoiding grazing animals. E. faster seed germination.
__________ are chordates with a braincase of cartilage or bone. Fill in the blank(s) with the appropriate word(s)
Phospholipids are made up of:
A. five-carbon rings with two nonpolar tails. B. a glycerol and three fatty acids. C. four fused carbon rings. D. a phosphate, two fatty acids and a glycerol.
A hypothesis about the evolutionary relatedness of a group of organisms is known as a:
A) homology. B) phylogeny. C) analogy. D) taxon.