_____ are always changed by participating in a reaction. (Choose all that are correct.)

a. Enzymes
b. Cofactors
c. Reactants
d. Coenzymes


C, D

Biology & Microbiology

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What are the finger bones called?

a. carpals b. metacarpals c. phalanges d. coxals

Biology & Microbiology

Active transport mechanisms

a. in roots regulate what solutes enter the plant. b. in leaves help control water loss. c. operate in animal kidneys and neurons. d. do all of these. e. do none of these.

Biology & Microbiology

Which statement concerning a scientific theory is FALSE?

a. It may suggest practical applications. b. It predicts new facts. c. It is based on a number of hypotheses. d. It is unchangeable. e. It is supported by many observations.

Biology & Microbiology

Explain how IS elements produce target-site duplications when they move

What will be an ideal response?

Biology & Microbiology