All of the following are true for enzymes, except

A. Enzymes can be denatured at high temperatures and wrong pHs

B. Enzymes can only be used 1 time

C. Enzymes can be used multiple times

D. Enzymes are for specific substrates

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?