the gross primary productivity of an ecosystem is 3.5 kgc/m2/year, and the energy needed by the producers for their own respiration is 3.0 kgc/m2/year. what is the net primary productivity of such an ecosystem?

Animals such as pronghorn antelope, bison ans badgers dot to the landscape. where are these animals located?

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above