Oligodendrocytes are similar to Schwann cells in that they
A) are a type of neuroglial cell.
B) are located in the central nervous system.
C) conduct nerve impulses.
D) help neurons regenerate after injury.
E) are located in the peripheral nervous system.
A
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Initially, which of the following isolating mechanisms is likely to have been the most important in preventing gene flow between the two populations of Rhagoletis?
A) Gamete incompatibility B) Temporal isolation C) Mechanical isolation D) Reduced hybrid viability
_______ is a type of symbiosis in which one species benefits but the relationship has no effect (good or bad) on the other species.
a) predation b) parasitism c) mutualism d) commensalism
Animals navigate by using two senses. One is called map sense and the other is called compass sense. Map sense is ________; compass sense is ________.
A. the learned ability to adjust a bearing depending on the animal's location; an innate ability to move in a particular direction B. the learned ability to move in a particular direction; an innate ability to adjust a bearing depending on the animal's location
The kingdom Fungi includes species
A) such as mushrooms and plants. B) that obtain food by ingesting other organisms. C) that use photosynthesis to obtain food. D) that obtain food by decomposing dead organisms and absorbing the nutrients.