How does the energy of a reaction change when it is catalyzed by an enzyme?

Injuries in the environment are a result of

Interferons play a vital role in the immune system why are interferons so important?

Unlike mendel's pea plants,humans can have a variety of heights,not just tall or short.what does this mean for human height? a.height is controlled by one gene b.height is controlled by more than one c.height is not genetic d.height is solely determined by whether or not you eat your vegetables