Dina walks out the door and a blast of cold air greets her. she goes back into her house and puts a coat on. what is the stimulus, the sensory receptor, and the response in the scenario?

Which muscle is responsible for inhalation ?

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?

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.