5 levels of organization- 1) the body-2) organ systems-
TRANSCRIPT
5 Levels of Organization-
1) The body- 2) Organ systems-
3) Organ4) Tissue
muscle
skin
nerve
5) Cell-
Nerve cell Red blood cell
Muscle cell
Homeostasis- internal stability or "steady state" maintained by the body. (27-3)
1) no matter what the external temperature is, we keep our internal temperature at _______.98.6˚ F
- When cold, you must use ________ to create heat through the process of shivering
food
-When too warm, we __________.sweat
2) O2 vs. CO2 levels- job of the lungs and circulatory system. Information from brain sent to these organs by hormones to help balance O2 vs. CO2 hormones
3.) protection from the external world-
a.) skin-b.) Hair on head, nose, face
c) nailsd) mucus