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THE PLANT KINGDOM Characteristics Major kinds of plants Plant Adaptations THE KINGDOMS OF LIVING THINGS CHARACTERISTICS OF PLANTS MULTICELLULAR EUKARYOTIC AUTOTROPHS (chloroplasts) MOSTLY ON LAND TISSUES AND ORGANS ALTERNATION OF GENERATIONS (2N/1N) CHARACTERISTICS USED TO CLASSIFY PLANTS: • VASCULAR TISSUE – DO THEY HAVE TUBES FOR CONDUCTING WATER AND FLUIDS? • REPRODUCTIVE STRUCTURES: SEEDS OR SPORES?? NONVASCULAR PLANTS No vascular tissue (tubes) Spores, not seeds. Haploid life cycle Example: MOSSES (Bryophyta) SEEDLESS VASCULAR PLANTS SPORES, NO SEEDS VASCULAR TISSUE (TUBES) DIPLOID LIFE CYCLE Example: FERNS (Pterophyta) SEEDLESS VASCULAR PLANTS SPORES, NO SEEDS VASCULAR TISSUE (TUBES) Example: HORSETAILS (Sphenophyta) NONFLOWERING VASCULAR PLANTS Example: CONIFERS (CONIFERIPHYTA) VASCULAR TISSUE SEEDS ON CONES NO FLOWERS OR FRUIT FLOWERING VASCULAR PLANTS VASCULAR TISSUE FLOWERS SEEDS IN FRUITS Example: ANGIOSPERMS ………………Should they really be called FRUIT PLANTS? These are not plants. WHY? PLANT ADAPTATIONS LEAVES WITH WAXY CUTICLE LEAVES FLOWERS FLOWERS ROOTS SEEDS Alternation of generations: __________ life cycle. Alternation of generations: __________ lie cycl Notice the two stages of the moss life cycle (dark blue and light blue). This is the alternation of generations. Which stage is the bushy moss plant we know? 2N or 1N? Which stage does the moss spend most of the time in? 2N or 1N ?????? So, moss are said to have a____________life cycle. (haploid or diploid)