What happens when the diaphragm contracts? a. the volume of the thoracic cavity increases. b. the diaphragm rises. c. the volume of the thoracic cavity decreases. d. the rib cage moves down.

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

Which term describes a normal value for something in the body? a. homeostasis b. set point c. feedback loop d. integration center

Select all that apply genes are specific nucleotide sequences occur in numbers that are the same as the number of chromosomes are located in a specific place on a chromosome determine the traits of an organism are units of rna