How do enzymes make reactions go faster?

They lower activation energy

They raise the activation energy

They supply extra reactants

They limit the amount products in the reaction

Stressor is a (n) select one: a. exercise program that increases one's ability to handle normal stress. b. hormone released by the adrenal glands during periods of stress. c. lower back muscle that frequently produces a feeling of physical tension.

There is observable change from each kind of organism into some other kind. True or False?

The South African economy can BEST be described as a A) command economy. B) traditional economy. Eliminate C) pure market economy. D) mixed market economy.

Why do you have to spit out your gum before the extraction of DNA?

This female hormone, stored in the posterior pituitary gland, stimulates the contractions of the uterus during childbirth. What is this hormone? A) FSH B) GH C) estrogens D) oxytocin

Several tissues come together to form an what

Which best explains what happen when an election moves from an excited state to the ground state

The internal solute concentration of a plant cell is about 0.8M. To demonstrate plasmolysis, it would be necessary to suspend the cell in what solution?

In some flowers, a purple pigment is synthesized from a red precursor pigment. In the absence of all pigment, flowers are white. A pure-breeding plant with red flowers was crossed to a pure-breeding plant with white flowers.

How could decomposer ne add ed to the diagram whicb parts of the food web do they affect