Radiant energy is the source of electromagnetic waves, which include x-rays, infrared and ultraviolet waves among others. The diagram below shows the electromagnetic spectrum. Which wave has the greatest frequency?

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.

Evolution acts upon the population of organisms and not on each individual organism