What is the nervous system composed of? A. The central nervous system
B. The peripheral nervous system
C. The respiratory system
D. Answers A & B

Which organelle breaks down sugar molecules that supply energy to the cell ?

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?

Which statements best describe monsoons? check all that apply. they force cool, moist air from oceans to rise. they are winds that blow in the opposite direction of a normal wind. they bring rain in the summer and drought in the winter they increase rainfall in south asia, africa, and australia. they influence precipitation as wind moves near a mountain.