Cells

1. The longer of the two lenses on a microscope close to the slide.
3. The knob on a microscope that moves the tube up and down
5. Part of a microscope that is a circular disk used to let light pass through it.
9. This person came up with the cell theory.
11. This person was the first to see red blood cells.
12. A lens close to the eye, used to see specimen.

2. Type of cell that lacks a nucleus and most other organelles. Example is bacteria.
4. Type of cell that has a nucleus surrounded by membrane and other organelles.
6. This person coined the term cell and was the first to use the early compound microscope.
7. This person was the first person to observe bacteria by seeing tiny organisms in pond water.
8. Used pea plants to track generic changes in offspring.
9. This person was the first to reach the conclusion that animals are made up of cells.
10. The knob on a microscope that only slightly moves things up and down