Communication and homeostasis

Question 1

3 ways Endotherms decrease body temp ?

Answer 1

• vasodilation = increased blood flow near skin surface so more heat loss
• sweating
• flattening of hairs

Question 2

3 ways to increase body temp ?

Answer 2

• vasoconstriction = blood vessels constrict less blood flow so less heat loss
• shivering =
• pilo erector muslce contracts so hairs stand up to traip air