Aidan D 8S Science B Crossword

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Across
  1. 4. The movement of particles of a substance from an area of high concentration to an area of low concentration
  2. 5. Living things
  3. 7. All the life processes that take place in the cell
  4. 9. The basic unit of life
  5. 10. Microscope that has two or more lenses and has a light source
  6. 16. Type of microscopic organisms
  7. 19. Made of just one cells
  8. 20. Structures in cells that perform a certain function
  9. 21. Hair like extensions that protrude from the surface of some unicellular organisms and from some cells in multi cellular organisms
  10. 22. Parts of an organism's that perform specific tasks
  11. 24. Substance created by the body to carry out any chemical digestion
Down
  1. 1. Any change in an organism's enviorment
  2. 2. Purpose or task
  3. 3. Optical device used for viewing very small objects
  4. 6. of Group tissues that work together to perform a specific function
  5. 8. Describes a membrane with very small openings that allow particles of some substances, but not others, to pass through
  6. 10. Tiny blood vessels that connect arteries to veins
  7. 11. Usually unicellular organisms that can be seen only through a microscope
  8. 12. Group tissues that work together to perform a specific function, such as digestion or breathing
  9. 13. Are components in foods that organism uses to survive and grow
  10. 14. Made of more than one cell
  11. 15. Small pliable cells that have no nucleus and are specialized for carrying oxygen to all the cells of the body
  12. 17. Diffusion of water through a selectively permeable membrane
  13. 18. Group of similar cells working together to perform a specific function
  14. 23. Organism's reaction to a stimulus