Across
- 3. Charophyte is another name for __________ algae
- 7. in vascular plants, conducts most of the water and minerals.
- 8. and land plants both have a __________, a group of microtubules that give rise to a new cell wall.
- 10. is a living tissue in which nutrient-conducting cells are arranged into tubes that distribute sugars, amino acids, and other organic products.
- 12. an embryo packaged with a supply of nutrients within a protective coat.
- 14. are the source of oxygen and the ultimate provider of food for land animals.
- 15. __________ tissue occurs when cells joined into tubes that transport water and nutrients throughout the plant body.
- 18. share four distinctive traits with land plants.
- 19. The xylem of all vascular plants includes __________, tube-shaped cells that carry water and minerals up from roots.
- 22. In moss, produces spores by meiosis. One can generate up to 50 million spores.
- 23. multicellular organs found on the sporophyte and produce spores.
- 24. the multicellular, dependent embryo of land plants
- 25. epidermis layer that acts as waterproofing
- 27. called “naked seed” plants because their seeds are not enclosed in chambers.
- 29. organs that anchor vascular plants and enable them to absorb water and nutrients from the soil, and allow the shoot system to grow taller.
- 31. create habitats for other organisms by stabilizing soil.
- 32. the diploid multicellular body form
Down
- 1. __________ of water if a challenges for plants living on land.
- 2. A male gametangium, called __________, produce and release sperm into the environment.
- 4. organs that increase the surface area of vascular plants to capture light.
- 5. in alternation of __________ two multicellular adult body forms alternate.
- 6. embedded in the moss archegonium, absorbs nutrients from the parent gametophyte.
- 9. embryos develop inside chambers called ovaries, which originate within flowers and mature into seeds.
- 11. and other nonvascular plants have life cycles dominated by gametophytes.
- 13. Charophytes and land plants both have __________ sperm
- 16. Plants sustain continual growth in length by repeated cell division within the __________ meristems
- 17. In bryophytes, haploid gametophytes are the largest and most conspicuous phase of the life __________.
- 20. A female gametangium, called an __________, produces a single egg
- 21. a reproductive cell that can develop into a new organism without fusing with another cell.
- 26. an informal name for nonvascular plants
- 28. Bryophytes are best able to reproduce sexually in __________ habitats with abundant gametophytes.
- 29. Gametophytes are anchored by delicate __________, which are long, tubular single cells (in liverworts and hornworts) or filaments of cells (in mosses).
- 30. the haploid multicellular body form
