2006-07-29 15:37:18 · 5 answers · asked by ming 1 in Science & Mathematics ➔ Biology
Just as a stove is fed with coal or wood to keep a fire hot, our bodies need a constant supply of food and drink to keep us warm internally.
2006-07-29 15:42:05 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Aerobic respiration produces energy in the form of heat. Also, since we are comprised mostly of water, which has a very high specific heat (meaning it retains heat very well and is a poor conductor... it takes a long time to heat up and a long time to cool off), we can retain the heat within our bodies for a long time.
2006-07-29 15:49:58 · answer #2 · answered by Stephanie S 6 · 0⤊ 0⤋
well, the heat source is metabolism, that is the oxydizing (burning) of fuel (food) to produce heat and other energy
the control system is complex and includes perspiration, hair standing on end to improve insulating, shivering to generate waste heat from musculature, control of blood flow to extremeties, etc
much of the time the control involves cooling, because just thinking, moving, heart-beating etc produces waste heat that mammals have to get rid of (cooling) to control their temperature
2006-07-29 15:43:56 · answer #3 · answered by enginerd 6 · 0⤊ 0⤋
a body fat layer... a hair layer... oily skin... several layers of membranes... blood vessels that can move about the epidermal layers... blood vessels that can expand and contract... and many, many, more!
Where does the heat come from? Chemical reactions within the organism.
2006-07-29 15:46:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Bloodfed? like vampire bats?
hehe
2006-07-29 15:46:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋