Which sentence best describes the bioremediation of pollutants? (a) bacteria are used to decompose an oil spill. (b) detergents are added to water to break down oil. (c) an oil spill is ignited and allowed to burn. (d) an oil spill is vacuumed off the surface of the water.

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

Which is the best example of plant tissue? the answer is d (just took the test)

This is the interaction of two organisms where one is and the other is neither nor harmed.