True or False if False Why? Thermal strategies of animals are defined by the source of the body heat and the degree of c

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True or False if False Why?
Thermal strategies of animals are defined by the source of the
body heat and the degree of constancy in body temperature. Complex
terminology is used to describe these relationships because they
differ in important ways. True or false: Bony
fish are generally poikilothermic ectotherms, but there are
examples of fish with temporal heterothermy. For example, tuna use
countercurrent heat exchangers to warm their swimming muscles and
billfish have modified muscles that generate heat to warm their
optic nerves.