Which statement is TRUE about the heart valves and blood flow through the heart? A. Oxygenated blood enters the left atrium and is pushed through the bicuspid valve to the left ventricle.
B. Deoxygenated blood enters the right atrium and is pushed through the semilunar valve to the right ventricle.
C. Deoxygenated blood enters the left atrium and is pushed through the tricuspid valve to the left ventricle.
D. Oxygenated blood enters the right atrium and is pushed through the bicuspid valve to the right ventricle.

Match the following. biodegradable diabetes n hazardous w cancer ozone 1. the layer of the atmosphere that the ozone layer is part of the type of wastes that can be broken down by other organisms into a reusable form the type of solid, liquid, or gas wastes that are toxic, flammable, corrosive, reactive, or radioactive the process by which certain waste materials, such as plastic, glass, aluminum, and paper are prepared for reuse 5. the addictive drug found in tobacco a disease frequently developed by smokers and passive smokers a disease of the pancreas in which insulin is not produced in 7. the correct amounts so that glucose can be converted into energy or stored as fat formed in the atmosphere when chemicals, called volatile 8. organic compounds (vocs), and nitrogen dioxide (no2) are acted upon by sunlight when burned, it can cause an increase of co2, ozone, and sulfur dioxide in the atmosphere stratosphere fossil fuel recycle nicotine