Which statement accurately describes the role of ocean waters and sea ice in earths system?

Which of the four major uses is predicted to change the least by 2020?

In a certain ecosystem owls are predators for mice. the owl population increases and they eat more mice this causes the mouse population to decrease what happens next? a. the birth of mice increases. b. the birth rate of owls increases c. the population of owls decreases d. the population of mice increases

What are the four basic classes of organic molecules how do they differ structurally and functionally