Which of the following is a correct interpretation of the wings of bats and the wings of birds?
a. they are homologous because the common ancestor of bats and birds had wings
b. they are not homologous because their similar internal bone structure evolved
independently as an adaptation for flight
c. they are homologous because they are adapted for the same function
d. they are homologous because they have similar internal bone structure inherited
from a common ancestor
e. they are not homologous because wings evolved from different ancestral organs in
birds and bats
D
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Riboswitches regulate transcription, rather than translation, in cells.
Answer the following statement true (T) or false (F)
"Hot spots" are locations in a gene where mutations are found at a relatively high frequency
Indicate whether the statement is true or false
Animals that swim about freely are
A. plankton. B. benthic. C. nekton. D. zooplankton.
Which of the following characteristics is often associated with animals that are radially symmetrical?
A) Gastrovascular cavity B) Sessile or otherwise nonmobile C) Cephalization D) Mobility E) Mesoderm