Across
- 3. Similar cells that work together to perform a specialized function.
- 6. The basic unit of life
- 7. A cellular organism that lacks an envelope-enclosed nucleus.
- 8. System Two or more organs that work together to perform body functions
- 9. A material made up of fibers forming a framework and support structure for body tissues and organs.
- 12. Produces hormones that act on target tissue in other organ to influence growth+development
Down
- 1. Organisms whose cells have a nucleus enclosed within a nuclear envelope.
- 2. sheath A fatty insulating layer that surrounds the nerve cells of jawed vertebrates, or gnathostomes.
- 4. The complicated unit of striated muscle tissue.
- 5. A component of the animal skeletal muscle.
- 10. A long extension of the cell that carries electrical signals away from cell body.
- 11. differentiation The process by which cells become specialized in structure and function.