Protein is when carbohydrates are scarce.
a. burned for energy
b. stored as glycogen
c. used to build muscles
d. stored as fat

Which of the following shows how other countries have influenced the creation of physical activities geared toward individuals baseball cricket swimming tai chi

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

Which of the following is the definition of ventilation as it relates to the respiratory system?