WorksheetsAP Biology- Ch 40, 43 & 45
Total questions: 20
Worksheet time: 40mins
Why must an endotherm eat more often than an ectotherm?
Endotherms must eat more to maintain a constant internal temperature.
Endotherms must eat more so that their internal temperature changes.
Endotherms must eat more so that their temperature matches other ectotherms.
Endotherms must eat more so that their internal temperature does not double.
When the body temperature decreases, hypothalamus sends out signals to constrict blood vessels to reduce heat loss and to shiver muscles to generate heat. This is an example of
positive feedback
negative feedback
feedback inhibition
allosteric inhibition
When baby starts pushing against the cervix, hypothalamus releases oxytocin to further contract the uterine walls. This is an example of
positive feedback
negative feedback
Testosterone (T) Testes
male sex characteristics and sperm production
Precusor for estrogen
Maintain pregnancy in 1st trimester
Prepares uterus for pregnancy
