Each of the following is a modification of the sentence THE CAT ATE THE RAT. A. THE RAT ATE THE CAT B. THE TAC ATE THE RAT C. THE CAT ARE THE RAT D. THE CAT ATT HER AT A frameshift mutation could result from a a base insertion only. b a base deletion only. c a base substitution only. d deletion of three consecutive bases. e either an insertion or a deletion of a base.

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.

The wind speed in the region between cities a and b was probably the greatest at noon on which day?

The changes that the students observed, rapid breathing and sweating, would be classified as a to a change in a system.