The cardiovascular system is responsible for which of the following?
A Secreting hormones into the blood stream

B Playing an important role in the immune system and fighting off invading microbes, infections and toxins

C Maintaining proper blood volume, ion and salt concentrations in the body

D Transporting homeostasis-regulating homones, nutrients and oxygen

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

Which foods are categorized as foods you should "eat less of" on the food label?

In which way does nicotine cause addiction? by stimulating the brain’s pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety