BIOLOGY

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Across
  1. 2. cells that regulate the opening and closing of stomata
  2. 3. prevents water-loss and reflects excess light
  3. 5. Plant tissue that are composed of nondividing cells
  4. 9. flexible support in plants
  5. 10. Basic unit of life
  6. 11. prevents water-loss and invasion of disease-causing microorganism
  7. 12. responsible for storage and photosynthesis
  8. 15. cells that transform into phagocytic macrophages
  9. 17. cells found in cartilages
  10. 18. cells that replaces the epidermis of mature plants
  11. 19. Type of meristem responsible for the primary growth of plants
  12. 20. basic unit of the nervous system
Down
  1. 1. flexible matrix
  2. 4. Plant tissues that are found on the growing areas of the plant
  3. 5. growth in plants characterized by increase in the plant's height
  4. 6. two kinds of this cell are sclereids and fibers
  5. 7. hard matrix with calcium salts and collagen fibers
  6. 8. refers to a group of individuals of the same species that live in a specific area
  7. 13. cells that surround all nerve fibers and produce myelin sheaths
  8. 14. Responsible for the transport of substances in the human body
  9. 16. This cambium give rise to secondary xylem and phloem