Which of the following statements is correct?

a. The best enzyme can catalyze a number of different chemical reactions using a variety of substrates.
b. The substrate must be larger than the enzyme in order for a reaction to occur.
c. A substrate binds several places on a given enzyme.
d. An enzyme will generally bind only one substrate.

d. An enzyme will generally bind only one substrate.

Explanation:

Enzymes are the catalytic biomolecules. The enzymes have specific pockets called active sites. Substrates bind to these pockets of enzymes. The active site of an enzyme is compatible to allow a specific substrate to bind to it. This allows specificity to the enzymes and ensures that a specific enzyme binds to a particular substrate only. A substrate can bind to the active site of its enzyme, it can not bind to any other site of the enzyme. Moreover, substrate binding induces a conformation change in the active site of its enzyme to favor the binding of more substrate molecules.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.