For the following questions, use these answers: a. yes (meaning at least some me

Question

For the following questions, use these answers: a. yes (meaning at least some members have this characteristic) b. no (no members have this characteristic) 14. Bryophytes have free-living gametophytes 15. Gymnosperms have free-living gametophytes. 6. Gymnosperms have flagellated sperm. 17. Angiosperms have flagellated sperm. 19. Angiosperms have a dominate sporophyte generation 20. Bryophytes have microphylls. 21 Vascular seedless plants have archegonia 22. Angiosperms have archegonia. - ANS 23. Gnetophytes may be the direct ancestors of angiosperms because: some gnetophytes are pollinated by birds a. b. gnetophytes do not have antheridia c some gnetophytes have vessels d. no gnetophytes have double fertilization 24. Angiosperms and gymnosperms have: a. alternation of isomorphic generations c. gametic meiosis d. zygotic meiosis 25. Which of the following statements about plant hormones is FALSE? The same hormone can elicit different responses in different tissues. The same hormone can elicit different responses at different times in the same tissue. hormone. All plant hormones can be classified into the "classic five" groups. a. b. c. A tissue's response to a hormone depends on the sensitivity of the tissue to that d. y animal hormones, plant hormones are often active: a. at the site of synthesis b. on C. in the d. independen ly in organs other than where they were produced same way in young and old tissues t of other chemicals (including hormones) present in the tissue 27. Plant hormones primarily regulate cell expansion by altering a. cell wall extensibility b. the size of the nucleus c. the number of mitochondria within the cell d. the number of chloroplasts within the cel

Explanation / Answer

14) Yes.
Bryophytes have an independent gametophyte. The gametophyte of bryophytes is haploid, free-living, and autotrophic.
15) No.
Gymnosperms donot have free living gametophytes.
16) No.
Most gymnosperms and all angiosperms donot have flagellated sperms,While some primitive gymnosperms have flagellated sperm cells.
17) No.
All angiosperms donot have flagellated sperms.

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