The fact that light can exert a pressure on matter suggests that it is made of particles called . photons electrons protons neutrons

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?