In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be ________
A) genetically identical
B) fraternal
C) dizygotic
D) potentially of different sexes
A
Anatomy & Physiology
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The centrioles are microtubules that play a significant role in ATP and energy production.
a. true b. false
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What are the three types of protein fibers in fibrous connective tissue?
What will be an ideal response?
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An area of the retina that contains only cones and is the site of sharpest vision is the
A) optic disc. B) inner segment. C) fovea. D) outer segment. E) tapetum lucidum.
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The pyloric sphincter is located between the
a. esophagus and stomach b. oral cavity and esophagus c. large intestine and rectum d. small intestine and large intestine e. stomach and small intestine
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