1. When you exercise, you produce carbon dioxide, since your body is doing more cellular respiration to make ATP a) less
b) no
c) the same amount of
d) more

2. What are the reactants of cellular respiration? (The molecules that go in)

a) carbon dioxide, ATP, water
b) ATP
c) sugar and oxygen
d) sunlight, carbon dioxide, water

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

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

What pattern of migration do whales follow?