Which of these is a major trend in land plant evolution? A) the trend toward smaller size B) the trend toward a gametophyte-dominated life cycle C) the trend toward a sporophyte-dominated life cycle D) the trend toward larger gametophytes
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B) The trend toward a gametophyte-dominated life cycle: This is not a major trend in land plant evolution, as early land plants had a gametophyte-dominated life cycle, but later plants evolved to have a sporophyte-dominated life cycle. C) The trend toward a Show more…
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All of the following are trends in plant evolution except; A) A trend towards better water conducting tissue B) A trend towards gametophyte dominance and away from sporophyte dominance C) A trend towards seeds and away from free spores D) A trend away from homospory and towards heterospory
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What is the major evolutionary trend in land plant life cycles? a. Instead of heing approximately the same size and shape, gametophytes and sporophytes began to look different. b. Sporophytes became larger and long lived while gametophytes became drastically reduced. c. In lineages that evolved more recently, such as angiosperms, spores are no longer produced. d. Sporophytes began to rely on gametophytes for all of their nutritional needs.
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