Edwin hubble discovered that:

cepheids have patterns of brightness.
stars have absolute and apparent magnitudes.
the planets move in elliptical orbits around the sun.
galaxies in the universe are moving away from the earth.

Amutagen is 1: a living thing that has undergone a mutation. 2: an agent that causes a mutation in dna. 3: a mutation that has affected one gene. 4: a chemical that can poison living cells.

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale