The electrical insulation that surrounds vertebrate axons is called A. Schwann c

Question

The electrical insulation that surrounds vertebrate axons is called A. Schwann cells. B. synapses. C. oligodendrocytic D. myelin. E. axon sheaths. Branched ends of the axon transmits information to another cell at a junction called the A. glia. B. siphon. C. synapse. D. myelin. E. plaque. What do proximate explanations of behavior focus on? A. How displays and other types of behavior have changed through time. B. The functional aspect of a behavior, or its 'adaptive significance'. C. Genetic, neurological, and hormonal mechanisms of behavior. D. Psychological interpretations of behavior. Which of the following statements about the waggle dance of the honeybee is not correct? A. The length of a waggling run is proportional to the distance from the hive to a food source. and scents produced by the dancer provide information about the nature of the food source. B. Sounds and scents produced by the dancer provide information about the nature of the food source. C. No elements of the round dance are used. D. The orientation of the waggling run provides information about the direction of the food from the hive, relative to the Sun's position. What does Hamilton's rule specify? A. Why animals do things for the good of the species'. B. Why reciprocal altruism can lead to fitness gains for unrelated individuals. C. When alleles that favor self-sacrificing increase in frequency via kin selection. D. The condition under which more complex behaviors evolve from simpler behaviors. What evidence suggests that there is a critical period for song learning in some bird species? A. In Mynahs and Mockingbirds, individuals continue to sing new songs throughout their lives. B. Individuals do not learn to sing normally unless they are allowed to hear themselves practice. C. Individuals that never hear their species-specific song can still sing normally as adults. D. Birds that are deafened soon after hatching never sing normally, but birds that are deafened several months after hatching sing normally Which of the following is true of innate behaviors?. A. Their expression is only weakly influenced by genes. B. They occur with or without environmental stimuli. C. They occur in some vertebrates but not mammals. D. They are expressed in most individuals in a population.

Explanation / Answer

44. The electrical insulation that surrounds vertebrate axons is called:

D. Myelin

Axons are a part of neurons which plays the role of carrying nerve impulses away from the cells. Their size can vary. There are some neurons which doesn't have axons.

Myelin basically is a white coloured fatty substance present around the axons or that surrounds the axons. And it acts as an insulator of axons. Along with that myelin plays an important role in protect axons.

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