What would happen to a person who has damaged pulmonary veins? Deoxygenated blood would not get back to the lungs.

Oxygenated blood would not circulate through the heart muscle.

Oxygenated blood would not get back to the heart to be pumped all over the body.

Deoxygenated blood would not get to the heart.

Suppose you calculate that elasticity of demand for cigarettes is 0.5. you can conclude that: a. demand for cigarettes is elastic b. demand for cigarettes is unitary elastic c. a 1% increase in price of cigarettes will result in a 0.5% decrease in quantity demanded d. a 1% increase in the price of cigarettes will result in a 0.5% increase in quantity demanded.

Why is important to cover your hands and feet in cold weather? a. they are furthest from your heart. b. they are often last to receive blood flow. c. they can suffer from tissue damage in cold weather. d. all of the above

Which of the following is the definition of ventilation as it relates to the respiratory system?