In an uncharged atom, the number of protons and must be equal. a. ions b. neutrons c. electrons d. particles e. neurons

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

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 is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry