How long was the archean age, relative to the entire history of the earth?

Why are some people more concerned about shark survival than about shark attacks?

Read the article and use the information to answer the following questions. active transport in active transport, molecules are moved across the cell membrane with the of neurons electrical impulses proteins. inhibitors 3 of 3 vity

1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.