ENDOTHERMS ECTOTHERMS
Definition Definition
LEARN Use heat produced internally to LEARN Temperature varies with environment
maintain body temperature. and is dependant on the environment.
E.g., Birds and mammals
Behavioural responses Behavioural responses
- Endotherms use mainly physiological
responses.
- Some behavioural
Ie.
- Dormancy during periods of high Ie.
(aestivation) or low temperatures - Basking
(hibernation) - Laying on hot rocks / cool rocks
- Use of burrows/ houses/ shade - Orientation of bodies towards or away
- Methods to warm/ cool burrows from the sun
- Gaping/ wrist liking - Educe movement so that metabolic
- Humans wea clothes dependant on heat is generated
weather - Move into the water or mud
- Migration - Move to cooler/ warmer regions
- Huddling
Anatomical/ physiological responses Anatomical responses
Ie.
- Metabolic heat
- Sweating
- Vasodilation/ vasoconstriction
- Hairs standing on end
- Shivering
Large SA for cooling e.g. Elephant ears
Definition Definition
LEARN Use heat produced internally to LEARN Temperature varies with environment
maintain body temperature. and is dependant on the environment.
E.g., Birds and mammals
Behavioural responses Behavioural responses
- Endotherms use mainly physiological
responses.
- Some behavioural
Ie.
- Dormancy during periods of high Ie.
(aestivation) or low temperatures - Basking
(hibernation) - Laying on hot rocks / cool rocks
- Use of burrows/ houses/ shade - Orientation of bodies towards or away
- Methods to warm/ cool burrows from the sun
- Gaping/ wrist liking - Educe movement so that metabolic
- Humans wea clothes dependant on heat is generated
weather - Move into the water or mud
- Migration - Move to cooler/ warmer regions
- Huddling
Anatomical/ physiological responses Anatomical responses
Ie.
- Metabolic heat
- Sweating
- Vasodilation/ vasoconstriction
- Hairs standing on end
- Shivering
Large SA for cooling e.g. Elephant ears
