In a market economy, a supply restriction occurs when a single firm monopolizes a market
a. true
b. false
Ans: a. true
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Mutation of the peripheral myelin protein 22 (PMP22) gene, which causes demyelination of peripheral neurons, is a more common cause of Charcot-Marie-Tooth disease. In which cells is the PMP22 gene important for normal function?
Charcot-Marie-Tooth is the most commonly inherited peripheral neuropathy, and has no known cure. Patients suffer damage to motor and sensory neurons, leading to degeneration of muscles and gradual loss of motor control. A. Schwann cells B. preganglionic neurons C. postganglionic neurons D. oligodendrocytes E. interneurons Clarify Question · What is the key concept addressed by the question? What type of thinking is required Gather Content/Choose Answer · What do you already know about components of the nervous system? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In addition to visual comparison, which of the following would be the best way to determine that S. niagarae and S. yellowstonensis are separate species?
a. Look for the presence of chloroplasts b. By the presence of a silica shell c. By their location in different lakes d. Compare their DNA sequences e. Carbon date them
It is advantageous for cells to be small because:a
a small cell size prevents a cell from weighing too much. b. a small cell size occupies less space in nature where space is limited. c. a small cell has a small volume relative to surface area, thereby increasing efficient transport. d. a small cell has a small surface area relative to volume, thereby facilitating ion balance. e. a small cell is better able to conserve energy than a larger cel
If short hair (L) is dominant to long hair (l), animals with LL and Ll have the same
A. genotypes B. phenotypes C. alleles D. genes