Fish are not able to regulate their body temperature by producing heat. how could a fish adjust its body temperature if it were too warm? a. swimming into cooler water b. evaporating water from its skin c. expelling water from its body d. speeding up its level of activity

The answer is A. swimming into cooler water.

Fish are ectotherm (so-called cold-blooded animal). That means that they cannot regulate their body temperature which thus depends on the external conditions. So, if a fish were too warm it could swim into cooler water. For example, it can swim to the deeper parts of the water which are colder and its body temperature will decrease with the decrease of the water temperature.

It will dry out with less sunlight