Which enzymes would be most active in the presence of high concentrations of protein fragments?

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow