Which is the substrate, enzymes and products for this equation? is lactase used up in the reaction?

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -