Which of the following is characteristic of the second stage within a demographic transition? a. the birth rate falls to meet the death rate.
b. the birth rate continues to climb to meet the death rate.
c. the death rate begins to fall, but birth rates remain high for a time.
d. the birth rate and death rate are equally high.

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?

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

When energy is used, atp molecules convert to adp molecules. this process is called