Living beings and their stractures-1.0

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Across
  1. 1. a horizontal, underground stem that produces new leaves, shoots, and roots
  2. 3. plant buds that make side branches as they grow
  3. 5. the round underground part of some plants, shaped like an onion, that grows into a new plant every year
  4. 7. middle layer of pericarp
  5. 9. primary root found in some plants that grows longer and thicker than other roots
  6. 12. Outer layer known as shell or skin of fruits
  7. 14. net-like, forming a network
  8. 16. A small raised area in the bark of stems and roots that enables gas exchange between living cells and the outside air.
  9. 17. A green pigment found in the chloroplasts of plants, algae, and some bacteria
  10. 20. The stalk of a leaf, which joins the leaf to a node of the stem.
  11. 21. inner layer of the pericarp
Down
  1. 2. A segment of a plant stem between the points where leaves are attached.
  2. 4. An enlargement at the end of a rhizome in which food is stored.
  3. 6. a structure that covers the tip of a root, protecting the root from injury
  4. 7. rib The center vein that goes up the length of a leaf
  5. 8. Small openings on the underside of a leaf through which oxygen and carbon dioxide can move
  6. 10. A bud at the tip of a plant stem; also called a terminal bud.
  7. 11. The pattern of veins in a leaf
  8. 13. small hairs on a root that produce a large surface area through which water and minerals can enter
  9. 15. The thickened wall of a fruit.
  10. 18. Any thin, flat layer or sheet of membrane or other tissue.
  11. 19. A node is an area on a stem where buds are located.