When a fish population undergoes exponential growth in a small pond, the fish can use up almost all of the dissolved oxygen in that pond. at that point, the fish population levels can decline rapidly. dissolved oxygen is an example of which of the following?
sigmoid curve
density-independent limiting factor
carrying capacity
density-dependent limiting factor

What does natural resource management aim at ?

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food