extra credit

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Across
  1. 4. an optical instrument used for viewing very small objects
  2. 6. a biological system consisting of a group of organs that work together to perform one or more functions
  3. 9. gelatinous liquid that fills the inside of a cell
  4. 11. protozoans, certain algae, spores, etc
  5. 12. an organelle within the cells of plants
  6. 13. a part of the body that is made up of cells and tissues that perform a specific function
  7. 14. controls and regulates the activities of the cell
  8. 15. provides a fixed environment inside the cell
Down
  1. 1. membrane-bound organelle found in the cytoplasm
  2. 2. an organism or part
  3. 3. the chemical processes that occur within a living organism
  4. 5. composed of a network of cellulose microfibrils
  5. 7. a network of membrane-enclosed tubules and sacs
  6. 8. a space or vesicle within the cytoplasm of a cell
  7. 10. an assembly of similar cells and their extracellular matrix from the same embryonic origin
  8. 12. the smallest structural and functional unit of an organism