What is one reason coral reefs are such diverse ecosystems?

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?

Which feature would you expect to find in a population in which sexual selection depends on male competition?

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae