Chapter 20: Plant Diversity
Across
- 2. the study of plants
- 4. multicellular eukaryotes, most of which produce their own food through photosynthesis and have adapted to life on land
- 6. the reproductive structure of most gymnosperms inside of which the female gamete is fertilized and seeds are produced
- 7. when pollen meets female reproductive parts of the same plant species
- 8. a fibrous material made up of dead cells that are part of the vascular system of some plants
- 10. a collection of specialized tissues that bring water and mineral nutrients up from the roots and disperse sugars down from the leaves
- 12. the study of how people in different cultures use plants
- 13. flowering plants whose embryos have two seed leaves
- 14. potent plant chemicals that contain nitrogen
- 16. a two-celled structure that contains a cell that will divide to form sperm
- 19. an embryonic leaf inside a seed
- 21. a seed plant that has seeds enclosed in some type of fruit
Down
- 1. the study of drugs and their effects on the body
- 3. a seed plant whose seeds are not enclosed in fruit
- 5. flowering plants whose embryos have one seed leaf
- 9. a waxy, waterproof later that helps hold in moisture
- 11. tiny holes in the cuticle
- 15. the mature ovary of a flower
- 17. a material that hardens the cell walls of some vascular tissues
- 18. a storage device for a plant embryo
- 20. the reproductive structure of flowering plants