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heat production
endotherm vs ectotherm
endotherm
generates significant body heat
ectotherm
does not generate significant body heat
body temperature
poikilotherm vs homeotherm
poikilotherm
body temperature can vary greatly
homeotherm
temperature does not vary greatly
isometric contraction
peak tension realized; muscle not allowed to shorten appreciably

isotonic contraction
muscle length shortens before peak tension is realized
