Life Science CK12 7.7 Life Cycle of Seedless Vascular Plants

Edit Answers
12345678910111213141516171819202122
Across
  1. 3. vascular seedless plant with large divided leaves called fronds; more plant-like than the clubmosses; have stems, leaves, and roots
  2. 4. production of offspring by two parents through the production and fertilization of gametes; produces genetically variable offspring
  3. 6. the finely divided leaf of ferns; has fiddlehead shapes
  4. 8. female gamete
  5. 10. nonvascular plant that has long, pointed sporophytes like tiny horns; a division of bryophyte plants
  6. 13. protective layer outside the cell wall of many prokaryotes; protects the cell from chemicals and from drying out
  7. 17. series of stages a sexually reproducing organism goes through from one generation to the next
  8. 18. having only one chromosome of each type; gametes are haploid
  9. 19. diploid generation in the life cycle of a plant that results from sexual reproduction with gametes and that produces spores for asexual reproduction
  10. 21. type of life cycle characteristic of plants in which the organism alternates between haploid gametophyte and diploid sporophyte stages
  11. 22. a smallnplant without vascular tissue; also called a bryophyte
Down
  1. 1. plant with vascular tissue but no seeds or flowers
  2. 2. nonvascular plant that has leaf-like or ribbon-like bodies
  3. 5. process by which organisms give rise to offspring
  4. 6. type of asexual reproduction when a parent organism breaks into fragments, or pieces, and each piece develops into a new organism
  5. 7. union of two gametes that produces a diploid zygote
  6. 9. haploid generation in the life cycle of a plant that results from asexual reproduction with spores and that produces gametes for sexual reproduction
  7. 11. reproductive cell produced by fungi or plants
  8. 12. basic unit of structure and function of living things
  9. 14. male gamete
  10. 15. referring to the total number of chromosomes in a species; having two sets of chromosomes
  11. 16. structure in angiosperms consisting of male and female reproductive structures that attracts animal pollinators
  12. 20. a tiny nonvascular plant that appears like green "fuzz" with tiny stem-like and leaf-like structures