Atherosclerotic heart disease: ________

Which of the following is a major step in the process of marketing a drug in the United States?

1. Isolation of the chemical 2. Identification of the chemical 3. Investigational new drug approval 4. New drug application a. 1 only b. 1 and 2 only c. 1 and 3 only d. 1, 2, 3, and 4

Which of the following exercises strengthens muscles through a contraction that overcomes some fixed resistance produced by equipment such as dumbbells, barbells, various weight machines, or exercise tubing and uses isotonic contractions in which force is generated while the muscle is changing in length?

A. Plyometric exercises B. Progressive resistance exercises C. Isometric exercises D. Circuit training exercises