Why do animals need to take in oxygen? A) to break down fuel molecules

B) to keep less oxygen in the atmosphere

C) to build fuel molecules from carbon dioxide

D) to be able to use energy from the sun

The shift of a vehicle's weight around its center of gravity is known as

The rapid decomposition of organic matter produces evidence which supports: the slow accumulation of coal deposits long ages of the earth rapid burial of vast amounts of vegetation biblical account of noah's flood

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur