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Which of the following best describes a fish's typical reaction to temperature changes?

Option: 1

Migration to deeper waters

 


Option: 2

Increasing metabolic rate
 


Option: 3

Changing coloration

 


Option: 4

Allowing body temperature to change with the environment


Answers (1)

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Correct option d) -  Allowing body temperature to change with the environment

Fish are ectothermic, which means that the temperature of the water around them affects their body temperature. Fish can demonstrate two different types of reactions to temperature changes: regulatory and compliant.

When a fish conforms to environmental temperature variations, it lets its body temperature fluctuate naturally without actively controlling it.

This is true for option D, which permits body temperature to fluctuate in response to the environment.

There are benefits and drawbacks to conforming to temperature variations. The benefit is that because the fish does not have to actively maintain a steady internal temperature, they consume less energy than regulatory responses. 

The drawback is that the fluctuating temperature may have an impact on the fish's physiological and behavioral processes since their enzymes and metabolic rate may perform less optimally at temperatures outside of their ideal range.

Thermoregulatory behaviors, metabolic changes, and physiological adaptations, on the other hand, include intentional adjustments to maintain a steady internal temperature. Although more energy-intensive, these reactions may offer more stable conditions for the fish's metabolism and operation.

Option d is the correct answer. 



 

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