ch. 29 bio test

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junderwo
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82355
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ch. 29 bio test
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2011-04-27 21:56:42
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  1. what is evidence that charophytes are the closest algea relative plants?
    • 1) similar sperm structure
    • 2) similarities in cell wall formation during cell division.
    • 3) genetic similarities in chloroplasts.
    • 4) similarities in proteins that synthesize cellulose.
  2. what is absent in the closest relatives of the charophyte algea?
    alteration of muticellular generations.
  3. what is shared by all phyla of vascular plants?
    • alternation of generations
    • dominance of diploid generation
    • xylem and phloem
    • addition of lignin to cell walls
  4. what is produced by meiosis in plants?
    haploid spores
  5. microphylls are found in what group of plants?
    Lycophytes
  6. what is a land plant that produces flagellated sperm and has a sporophyte-dominated life cycle?
    fern
  7. suppose an efficient conducting system evolved in a moss that could transport water and other materials as high as a tall tree. name true statements of this.
    • 1) fertilization is more difficult
    • 2) spore dispersdal ditances might increase but probably would not decrease
    • 3) unless body parts were streightened, the tree would flop over.
    • 4) individuals could compete more effectively for access to light.
  8. identify if these structures are haploid or diploid.

    a)sporophyte
    b)spore
    c)gametophyte
    d)zygote
    e)sperm
    • a) sporophyte is a diploid
    • b) spore is a haploid
    • c) gemetophyte is a haploid
    • d) zygote is a diploid
    • e) sperm is a haploid

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