9c homeotherms Flashcards
1
Q
why do Mammals and birds face a different set of challenges than poikilotherms?
A
They must expend energy to
produce heat
prevent excessive heat loss
prevent overheating
BASICALLY PRODUCE HEAT BUT NOT TOO MUCH
2
Q
sensor
A
detects the temperature of the object (thermometer)
3
Q
set point (reference signal)
A
sets to the desired temperature like a thermostat
4
Q
controller
A
compares object temperature to set point and “decides” whether it is too high or too low. (thermostat)
DOES NOT MOVE TEMP IS REALLY JUST COMPARING
5
Q
effector
A
physically alters the temperature of the object, as necessary (furnace)