Astudent shines a flashlight on the lens. which best describes what happens when light rays exit the lens?

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.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.