Why do living things use enzymes instead of heat as a source of activation energy?

a: adding heat does not affect how chemical reactions take place.
b: adding sufficient heat would harm or kill a living thing.
c: adding heat would not give the reactants enough energy.
d: adding heat gives reactants the wrong kind of energy.

How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.

Select the correct answer from each drop-down menu proteins are

1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)