Question 2 (multiple choice worth 2 points)
which of the following is a technique used in absolute dating?
o index fossil correlation
original horizontality
his
radiocarbon dating
cle
superposition

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

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Why do we perceive objects as retaining their brightness under different lighting levels?