Cathy placed a sample of yeast, a single-celled eukaryote, in a closed test tube containing a solution of glucose. How will the
composition of the air in the test tube change as the yeast interacts with the glucose? A) The oxygen level will increase.
B) The carbon dioxide level will decease.
C) The carbon dioxide level will increase.
D) The level of carbon dioxide and oxygen will remain the same.
