The human mouth has a plethora of bacteria species. why is there so much variety of bacteria in the mouth? a. lots of air cause the bacteria to mutate. b. saliva causes bacteria to mutate. c. nutrients in the mouth create a favorable habitat. d. calcium in the teeth provides the proper ph.

What are some aquatic organisms that live in cold water temperatures?

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme