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5 Cards in this Set
- Front
- Back
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4 components of an animal's energy budget |
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Thermoregulation |
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Thermoconformity |
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Regulating heat exchange |
1. Behavior - seeking or avoiding env'tl heat • basking to warm • seeking shade to cool 2. Insulation Feathers or hair: - increases or decreases thickness by fluffing - traps warm air next to body Blubber: subcutaneous fat in marine animals 3. Circulation a. Vasodilation • superficial (near surface) blood vessels dilate • increased fluid flow increased heat exchange with env't b. Vasoconstriction • superficial blood vessels constrict • heat exchange with env't c. Counter-current exchange • fluid flow in opposite directions maximizes concentration difference between fluids - equilibrium does NOT develop - therefore, exchange of a substance between fluids is maximized - a high (or low) concentration can be maintained in one location 4. Evaporation • body water: - sweating - panting • external water source: - bathing |
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Hormones that regulate blood glucose concentration |
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