Young male white-crowned sparrows that were experimentally raised without ever hearing the song of their species
____.
a. instinctively performed the song perfectly
b. never sang at all
c. sang a poorly developed, but similar, version of their species' song
d. sang a recognizable version of an ancestral species’ song
e. never sang the way wild males do
ANSWER: e
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Penicillin is produced by some ________.
A. actinomycetes B. protozoan C. bacteria D. fungi
In this study, which is the control group?
a. the honeybees that were anesthetized b. the honeybees that were not anesthetized
Comparisons of genetic information from various invertebrate groups has ____
a. confirmed nearly all classifications that were based on phenotypic resemblances b. provided a complete and final picture of animal phylogeny c. led to a decision to forgo formal classification of animals d. led to a reshuffling of the classification of animals that is still being refined e. confirmed that some invertebrates should be classified as vertebrates
Where in the mammalian kidney should you expect to find cells with the highest concentration of
osmolytes such as sorbitol?
a. renal pelvis b. renal cortex c. Bowman's capsule d. collecting ducts e. renal medulla