The theories of "Survival of the Fittest" and "Evolution" were proposed by which scientist? a
Isaac Newton
b
George Washington
c
Albert Einstein
d
Charles Darwin

Which muscle is responsible for inhalation ?

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection