An __________ consists of hardened parts inside the
body. Fill in the blank(s) with the appropriate word(s).
Answer: endoskeleton
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Phylogenetic relationships, when determined solely by the study of comparative morphology, may be
incorrect due to a. morphological divergence. b. convergence. c. adaptive radiation. d. extinction. e. observer error.
The blending theory would predict that the phenotype seen in the F1 generation from a cross between a pure breeding plant with dark purple flowers and a pure breeding plant with white flowers would be __________
A) dark purple B) light purple C) white D) a 3:1 ratio of purple to white flowers E) a 1:1 ratio of purple to white flowers
A myogram is a recording of
A) the electrical activity of muscle cells. B) the electrical activity of nerves at neuromuscular junctions. C) the activity of muscle cells. D) blood pressure changes resulting from muscle contraction. E) the movement of myosin filaments.
In angiosperms, the _______________ are the specialized reproductive organ(s) whose main function is to bring together the sperm and egg.
a. flowers b. seeds c. cones d. pollen grains e. leaves