Homeostasis and Excretion

1. Coordination of to control-hypothalamus

2. the removal fron organisms of toxic materials, the waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requierments.

3. Negative feed back -The temperature of your blood rises above the norm.

4. -inverte brates -fish,amphibians,reptails

5. Structure of the skin

6. sweat gland,sebacens gland,hair folicle,sensory nerve,nails

7. malpighian layer,cornified layer

8. adipose tissue receptors

9. heart loss:hair lies flat,blood system loses heart,sweat

10. Mechanism of to control:

11. heat gain:muscles work-contract and relax very quickly,metabolism may increase,hair stand up

12. The maintenance of a constant internal environment

13. Homeostasis keeps the internal environment constant

14. Control of blood content

15. The control of body temperature

16. birds+mammals