Complete the following sentence. Polyculture and permaculture methods reduce many agricultural tasks, limiting the soil that can result from mechanical cultivation and from foot traffic, which is particularly useful when cultivating soils with a high clay or silt content.

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.

49 ! how are energy cycles and growth cycles related?

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.