Across
- 4. light microscope-Microscope that has two or more lenses and has a light source
- 6. substance that provides nourishment essential for growth and the maintenance of life
- 7. System-Group of organs that work together to perform a certain task, such as digestion or breathing
- 8. digestion-Breakdown of large food particles into smaller particles by enzymes
- 9. of Microscopic organisms
- 10. soft fatty substance in the cavities of bones, in which blood cells are produced (often taken as typifying strength and vitality)
- 11. of just one cell
- 16. or task
- 17. movement of particles of a substance from an area of higher concentration to an area of lower concentration
- 19. of tissues that work together to perform a specific function
- 21. a membrane with very small openings that allow particles of some substances, but not others, to pass though
- 22. things
- 24. cellular-Made of more than one cell
Down
- 1. chemical processes that occur within a living organism in order to maintain life.
- 2. change in an organism's environment
- 3. of similar cells working together to perform a specific function
- 5. a material or membrane) allowing liquids or gases to pass through it
- 9. unicellular organisms that can be seen only though a microscope
- 12. optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.
- 13. Blood Cells-Small,pliable cells that have no nucleus and are specialized for carrying oxygen to all the cells of the body
- 14. pods-Foot-like projections on an amoeba
- 15. reaction to a stimulus
- 18. blood vessels that connect Arteries to Veins
- 20. cells-Cells that have specific structures that help them to perform particular functions
- 23. of an organism that perform specific tasks