By the end of glycolysis, a molecule of glucose has been broken down into two molecules of . Question 5 options:

Pyruvate

Carbon dioxide

Oxygen

Lactic acid

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Which of the following statements about protists are true? a.they are typically found in moist environments. b.they are all unicellular. c.they have a nucleus. d.they are all multicellular.