Which of the Following Factors Accounts for the Efficiency of Gas

question 91

Multiple Choice

Which of the following factors accounts for the efficiency of gas exchange in fish gills?

• A) Maximized surface area
• B) Minimized path length for diffusion
• C) Countercurrent flow of blood and water over opposite sides of the gas exchange surfaces
• D) Both a and b
• E) All of the above

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Definitions:

Salivation

The secretion of saliva in the mouth, which can be a response to the sight, smell, thought, or taste of food.

Disinhibition

When the conditioned stimulus elicits a conditioned response (CR) after a novel stimulus is presented during extinction

Novel Stimulus

A new or unfamiliar stimulus that has not been previously experienced by an organism.

Conditioned Response

A response that is acquired due to the association of a neutral stimulus with an unconditioned stimulus, leading to a conditioned reaction.