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Published byErnest Daniel Modified over 9 years ago
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Today’s Agenda… No bellringer or flashback Review Unit Tests Discuss homework for this weekend Review packet from yesterday Notes on Seedless Plants
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PLANTS Seedless Plants Seed Plants Non vascular Vascular Seeds in Cones Seeds in Flowers
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Seedless Plants Study Pack #2
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Today’s Goals… I I can compare and contrast seedless nonvascular plants and seedless vascular plants. can identify the importance of some nonvascular and vascular plants.
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Mosses and Liverworts SSSSmall LLLLive on bark, rocks and soil NNNNo vascular system MMMMust live in places that are wet NNNNo true roots, stems, or leaves
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Mosses
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Liverworts
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Live together in large groups Covering soil or rocks in a mat of tiny green plants Each moss has rhizoids (root- like structures) Rhizoids help anchor the plant
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Importance of Mosses and Liverworts: Usually the first plants to inhabit a new environment Form a thin layer of soil when they die Help hold the soil in place which prevents erosion Nesting material for birds Peat moss can be burned as fuel
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Ferns, Horsetails, and Club Mosses: Grow tall Have vascular systems
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Ferns
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Ferns Can grow almost anywhere. Have an underground stem called a rhizome. Leaves are called fronds.
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Horsetails
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Horsetails Small vascular plants. Grow less than 1.3 meters tall. Grow in wet, marshy places. Stems are hollow and contain cilia. Pioneers used them to scrub pots and pans.
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Club Mosses 25 cm tall. Grow in woodlands. Unlike other mosses, they have vascular tissue.
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Importance of Seedless Vascular Plants Help form soil when they die. Also hold soil in place to prevent erosion. Ferns serve as house plants. Some are cooked and eaten. Formed coal.
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