Cells in the stomach produce an enzyme called pepsin to help digest food. Pepsin is most effective at a pH of 2 Which of these graphis most likely shows what happen to the activity of pepsin as the pH of the stomach is increased?

Which represents a negative impact of technology

What does it mean for an allele to be dominant?

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .