What Would Be the Consequences If We Were to Reverse

question 42

Multiple Choice

What would be the consequences if we were to reverse the direction of water flow over the gills of a fish, moving water inward past the operculum, past the gills, then out of the mouth? This reversal of water flow would ________.

• A) reduce the efficiency of gas exchange
• B) change the exchange of gases in the body from carbon dioxide out and oxygen in to carbon dioxide in and oxygen out
• C) increase the efficiency of gas exchange

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Definitions:

Vagus Nerve

A cranial nerve that extends from the brainstem to the abdomen, influencing heart rate, digestion, and mood regulation.

Stretching

The process of gently elongating muscles and tendons to increase flexibility and reduce the risk of injury.

Stomach Wall

The layers of tissue that form the structure of the stomach, including the mucosa, submucosa, muscularis externa, and serosa.

Adaptive Value

The degree to which a trait or behavior enhances an organism's chances of survival and reproduction in its environment.