Botany

3. the transfer of pollen from the male reproductive structure to the female reproductive structure
9. bear their seeds in flowers inside a layer of protective tissue
10. hollow tubelike cells with thick cell walls strengthend by lignin
11. sperm are produced
12. structure containing one or more matured ovaries
14. shift between haploid and diploid
17. a tissue that carries water upward from the roots to eery part of the plant
18. one seed leaf
19. multicellular haploid phase
21. eggs are produced
22. spore-producing plant

1. entire male gametophyte is contained in a tiny structure called a
2. mosses belong to a group of plants known as
4. structure in which the female gametophytes develop
5. surrounds and protects the embryo and keeps the contents of the seed from drying out
6. most land plants carry water in a specialized tissue
7. transports solutions of nutrients and carbohydratws
8. plant embryo and food supply
10. vascualr plants after a specialized type of water-conduting cell they contain
13. two seed leaves
15. bear their seeds directly on the scales of the cones
16. spore capsule
20. surround and protect the seeds