How does an enzyme lower the ea of a reaction?

Enzymes are bio catalyst that increases the rate of a chemical reaction without changing its equilibrium. Enzymes work at specific temperature and pH conditions only.

Enzymes lowers the activation energy of the reaction by binding with one of the reactant and holds the reactant that lowers its activation energy. Enzymes also increases the effective collisions between the substrate molecule.

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse