The wings of bats and birds and the streamlined body form of sharks and whales represent examples of ________
A) convergence
B) reversal
C) outgroups
D) a clade
A
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Surgical removal of the pancreas would
A. increase the acidity of the small intestine. B. prevent the production of chyme in the stomach. C. eliminate the ability to store bile in the gallbladder. D. block the secretion of bile. E. All of these changes would be a result of pancreas removal.
The bony or cartilaginous cranium in chordates is adaptive because it
A. develops into the postanal tail. B. protects the brain. C. allows movement, as a lightweight exoskeleton structure. D. replaces the notochord in most chordates. E. forms the vertebrae.
A fish pumps __________ blood through its heart as
does the __________ side of the bird and mammalian hearts. a. oxygenated; right b. oxygenated; left c. oxygen-poor; right d. oxygen-poor; left e. mixed; left
Guttation is the process most responsible for moving water and minerals through the plant. Indicate whether the statement is true or false