Structures no longer have a use in an organism Homologous

Vestigial

Common ancestoral

Fossil

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans

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.