How much is a "serving" of each? (answers are 1/2, 3/4, 1 or 2-3.) use digits to express your answers.

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

In a two to three page paper, examine the history and development of the healthy people initiatives. discuss some of the successes and shortfalls of the three initiatives thus far; including healthy people 2000, healthy people 2010, and healthy people 2020. be sure to include statistical data from the initiatives to support your position. don't forget to cite your sources.

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4