plants by js

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Across
  1. 4. an organelle found in plant and algae cells where photosynthesis occurs
  2. 5. Waxy, protective layer that covers the stems, leaves, and flowers of many plants. Helps prevent water loss.
  3. 6. tough structure that protects a root as it forces its way through the soil
  4. 10. cell organelle that stores materials such as water, salts, proteins, and carbohydrates
  5. 11. the insect or animal that carries the pollen to the pistil
  6. 13. A growth response of a plant toward or away from a stimulus
  7. 14. a plant having a life cycle that normally takes two seasons from germination to death to complete
  8. 15. tiny leafy-stemmed flowerless plants, a nonvascular plant that has simple parts
  9. 17. a fine dust that contains the sperm of seed-producing plants
  10. 18. chemical messenger
  11. 19. the fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo
Down
  1. 1. reproductive organ of angiosperm plants especially one having showy or colorful parts
  2. 2. green pigment in plants that absorbs light energy used to carry out photosynthesis
  3. 3. small openings on the surface layers of the leaf, control when gasses enter and leave the leaf
  4. 7. the process by which a plant captures energy in sunlight and uses it to make food
  5. 8. sticky portion at the top of the style where pollen grains frequently land
  6. 9. the ripened reproductive body of a seed
  7. 12. a low-growing plant that lacks true vascular tissue
  8. 16. the joining of a sperm cell and an egg cell
  9. 20. young plant that develops from the zygote, or fertilized egg