Which of the following best explains how enzymes speed up a chemical reaction?
enzymes remove heat from a chemical reaction.
enzymes add heat to a chemical reaction.
enzymes lower the activation energy of a chemical reaction.
enzymes are not changed as a result of a chemical reaction,

The body of water found at number 4 on the map above is the

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.