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10 cards from this deck
Organisms maintaining constant body temp via internal heat
Endotherms: internal metabolism; Ectotherms: external sources
Behavioural, structural, physiological
Control of body temperature
Traps air layer close to skin
Small SA:V - less surface area for heat loss
Large SA:V - more surface area for heat loss
Water evaporation removes heat energy from body
Blood vessels widen, increasing blood flow to skin for heat loss
Heat transfer from arterial to venous blood, reducing heat loss
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