2. Explain the role of the smooth muscle sphincters and

the vascular shunt in a capillary network:

Which one of the following would you predict is an allosteric inhibitor of the Krebs cycle enzyme, α-ketoglutarate dehydrogenase? A) NAD+ B) ADP C) α-ketoglutaric acid D) citric acid E) NADH

Compare and contrast indirect versus direct values of biodiversity, and provide examples.

Which of the following must be true of a population in genetic equilibrium? A. Migration between populations B. Small population size C. Random mating D. Sexual selection

True or False - About 3 quarters of Earths fresh water is in the form of ice

The temperature of the moon's surface varies greatly from day to night because the moon has a. maria. b. no atmosphere. c. many craters. d. highlands.

Which structure in a cell makes protein

Do Genes make up chromosomes.

Foxes in the Arctic primarily eat hare. Hare eat plants, such as berries, leaves, and grass. If the plants in an Arctic area decrease in number, what will most likely happen to the populations of both the Arctic fox and the Arctic hare? A.

What is the purpose of the biogeochemical cycles?

Strong trading kingdoms emerge in w. africa because of an abundance of salt and?