Ecosystems have many different organisms all coexisting together. How are they all linked? A. by whether they are predators or prey
B. by what they consumer for energy
C. by their species
D. by where they choose their habitats

What happened to rosalind franklin in 1956?

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 variation among individuals, on which natural selection acts