What gas element is not being used when performing anaerobic fitness and why? What does the body use when performing anaerobic fitness?

17. explain why or why not you might choose to utilize alternative, complimentary, and integrative/or medicine. explain how these types of medicine are different from traditional (orthodox) medicine?

*edit* i took the test and i picked a and it was incorrect for its c! rank the following suggestions for preventing std, in order of increasing effectiveness. 1) using latex condoms properly 2) using spermicidal foam or jelly with a monogamous partner 3) abstaining from sexual intercourse and genital contact a. 1, 2, 3c. 2, 1, 3

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