Across
- 2. eggs are produced
- 3. mosses belong to a group of plantsthat are known as
- 4. two seed leaves
- 5. surround and protect the seeds
- 7. sructure in which the female gametophytes develop
- 8. transports solutions of nutrients and carbohydrates
- 9. spore capsule
- 12. multicellular haploid phase
- 14. vascualr plants after a specialized type of water-conducting cell they contain
- 15. hollow tubelike cells with thick cell walls strengthened by lignin
- 16. bear their seeds directly on the sclaes of the cones
- 19. most land plants carry water in a specialized tissue
- 21. one seed leaf
Down
- 1. structure containing one or more matured ovaries
- 2. shift between haploid and diploid
- 6. sperm are produced
- 8. entire male gametophyte is contained in a structure called a
- 10. bear their seeds in flowers inside a layer of protective tissue
- 11. a tissue that carries water upward from the roots to every part of the plant
- 13. the transfer of pollen from the male reproductive structure to the female reporductive structure
- 17. surrounds and protects the embryo and keeps the contents of the seed from drying out
- 18. plant embryo and food supply
- 20. spore-producing plant
