Science+10

10-1-09 Excretory system
 * Excretion:the removel of living thing.
 * Carbin deoxied, inorganic salt,water, hygrogin,heat
 * Orgins of the exretory system:skin, kiddny,lungs

9-24-09 ---nervous system

Central nervous system
 * Brian-gets and sends around the body;Major control center of body
 * Spinal cord-is proteched by spine;Connectes the brain to the rest of the nervouse system

Peripheral Nervous System


 * Nervous- ; conectravel through body