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Body Heat Produce Fish Modern Classification Animals Wrt

Animals are classified by body heat regulation as endotherms (generate own heat), ectotherms (absorb external heat), and heterotherms (can generate heat but don't regulate it tightly).

Moderne Klassifizierung von Tieren in Bezug auf Körperwärme: Endotherme: produzieren ihre eigene Körperwärme, z. B. Vögel, *fliegende Insekten*, einige Fische, Säugetiere. Ektotherme: produzieren wenig Stoffwechselwärme, die verloren geht, absorbieren aber Wärme aus der Umgebung, z. B. Fische, Amphibien, Reptilien, die meisten Wirbellosen. Heterotherme: können Körperwärme produzieren, regulieren die Körpertemperatur aber nicht innerhalb eines engen Bereichs, z. B. Fledermäuse, Kolibris.

Front Modern classification of animals wrt body heat
Back Endotherms:
.produce their own body heat
.eg birds, *flying insects*, some fish, mammals

Ectotherms:
.produce little metabolic heat which is lost, but absorb heat from surroundings
.eg fish, amphibians, reptiles, most invertebrates

Heterotherms:
.can produce body heat, but do not regulate body temp within a narrow range
.eg bats, hummingbird

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