What is a void? 1 an area in space where matter is densely concentrated.

2 an area in space with little or no matter.

3 an area in space that contains a solar system.

4 an area in space that contains a black hole.

WILL MARK BRAINLIST IF CORRECT!!!

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

What factors contribute to the effect an environmental toxin has on the human body?

Creating new things to solve problems and improve life depends on the close interaction of which two fields?