| 31. | They also differ in the morphology of their gametophytes.
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| 32. | Extant lycophytes produce several different types of gametophytes.
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| 33. | Smaller spores tend to germinate into gametophytes which produce only sperm-producing antheridia.
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| 34. | Moss gametophytes have stems which may be simple or branched and upright or prostrate.
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| 35. | The mature gametophyte produces male or female gametes ( or both ) by mitosis.
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| 36. | The horn-shaped sporophyte grows from an archegonium embedded deep in the gametophyte.
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| 37. | Sperm cells in algal and many plant gametophytes are produced in male mitotic division.
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| 38. | Bryophytes have life cycles that are gametophyte dominated.
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| 39. | These are fertilized by sperm produced by the male gametophyte developing from the microspore.
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| 40. | The male gametophyte consists of the pollen grains.
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