Select all statements that apply to Enzymes: Composed of polypeptides

Increase activation energy
to speed up chemical reactions

Lower the energy of products

Increase the amount of substrate present in a reaction

Are versatile and can catalyze most reactions if the reactants are at a high concentration.

Bind to substrates at active sites

bc blah

explanation:

bc blah

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

answer australia and antarctica;