Which system protects the body from harmful organisms and disease-causing germs? a. circulatory b. respiratory c. immune d. reproductive

Which description best defines the nervous system and its two main branches? a: the message center of the body, split into the autonomic nervous system and the somatic nervous system b: the control panel of the body, split into the central nervous system and the exterior nervous system c: the message center of the body, split into the central nervous system and the peripheral nervous system d: the control panel of the body, split into the brain and the spinal cord

Which are fat-soluble vitamins? a. abcd b. abek c. abdk d. acdk e. adek

China was the world's leading steel producer in 2006. what changes would you expect to be taking place in china?