Mechanoreceptors that react to changes in pressure are part of the _____
A) human sense of taste
B) pain receptors in birds
C) human sense of smell
D) lateral line systems in fish
E) eyes in arthropods
Answer: D
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Dietary treatment of galactosemia ____
a. need not begin until one or two months after birth b. consists of very low protein intake c. can usually be discontinued by the age of twelve d. completely eliminates symptoms of the disease e. should be started within a few days after birth
In a process called ____, cells lose their normal regulatory controls and revert partially or completely to an embryonic
developmental state.
a. metastasis b. embryogenesis c. induction d. determination e. dedifferentiation
Darwin hypothesized that advantageous hereditary traits in nature would become more common in populations due to
the process of ____.
a. inheriting acquired traits b. use and disuse c. selective breeding d. artificial selection e. natural selection
Which of the following is an egg-laying mammalian group?
a. monotremes b. eutherians c. polytherians d. metatherians e. marsupiums