A Neurophysiologist Is Investigating Nerve Reflexes in Two Different Animals

question 68

Multiple Choice

A neurophysiologist is investigating nerve reflexes in two different animals: a crab and a fish. Action potentials are found to pass more rapidly along the fish's neurons. What is the most likely explanation?

• A) The fish's axons are smaller in diameter; small axons transmit action potentials faster than large axons do.
• B) Unlike the crab, the fish's axons are wrapped in myelin; myelination increases the speed of action potential transmission.
• C) There are more ion channels in the axons of the crab compared with fish axons.
• D) Unlike the crab, the fish's axons are wrapped in myelin, and the fish's axons are smaller in diameter; small axons transmit action potentials faster than large axons do.

Understand the significance of complete and ethical reporting in psychological research.

Understand the concept of sexual harassment and its forms within work environments.

Recognize the role of gender and power dynamics in violent behaviors, including rape during warfare.

Comprehend the social and biological aspects of gender and sex.

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Definitions:

Industrial Development

The process of industrialization whereby an economy is transformed from primarily agricultural to one based on the manufacturing of goods. Individual manual labor is often replaced by mechanized mass production.

Fugitive Slaves

Escaped slaves from Southern plantations seeking freedom in the North or Canada especially during the 19th century before the abolition of slavery.

Industrialized

Refers to the process by which an economy is transformed from primarily agricultural to one based on the manufacturing of goods. Individual manual labor is often replaced by mechanized mass production.

Literacy Rates

Literacy rates indicate the percentage of people in a specific age group who can read and write within a particular population.