Which of the following are components of vertebrate gravity receptors?
I-Utricle and saccule chambers of a membranous labyrinth.
II-Hair cells with stereocilia and kinocilium.
III-Hairlike processes embedded with otolith membrane, a gelatinous membrane containing calcium carbonate crystals.
IV-Peripheral chemoreceptors.
A. I and II only
B. II, III, and IV
C. I and IV only
D. I, II, and IV
E. I, II, and III
E. I, II, and III
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Which of the following does not occur in the large intestine?
A. absorption of fats B. reabsorption of water C. formation of feces D. storage of feces E. production of vitamin K by bacteria
If your physician suspects you have symptoms of a genetic disease, he can collect cells for genetic testing by
A. sampling your blood cells. B. sampling cells that line your mouth. C. sampling cells in your saliva. D. All of the answer choices are correct. E. sampling the tissue which is observed to be affected.
The cyclic carbon fixation reactions are also known as the
A. citric acid cycle. B. tri carboxylic acid cycle. C. Calvin cycle. D. Krebs cycle.
What description applies to the term consilience, which is demonstrated by the evidence for the theory of common descent?
A) The supporting evidence for the theory is derived from different sources. B) The evidence is able to convince even nonscientists who have doubts about the theory. C) Not enough evidence has been gathered to support the theory. D) The theory can never be challenged by new evidence.