The semicircular canals are
a. empty.
b. filled with gas.
c. filled with a liquid.
d. filled with bones or stones.
e. filled with sand grains.
Answer: c
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Which of the following statements provides evidence that organelles (e.g., mitochondria and chloroplasts) originated billions of years ago as a result of primitive eukaryotic cells engulfing free-living bacterial cells? (Choose all that apply)
A. Their DNA is usually circular. B. They have an inordinate amount of noncoding DNA. C. They do not synthesize proteins. D. Their DNA is packed as a nucleoid rather than as a chromosome.
____ stabilize the blood vessels, providing structural support allowing for the blood to flow.
a. fat cells b. blood cells c. muscle cells d. adipose tissue
According to the theory of _____, governments and laws, social interest groups, social values, and markets and economic stakeholders are the boundaries of managerial power.
A) pluralism B) transnational power elite C) institutional elite D) dominance
Would one expect a linear relationship between DNA sequence divergence and phylogenetic distance? Why or why not?
What will be an ideal response?