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Published byDwain Fletcher
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Importance of Plants: AgriculturePrevention of Soil Erosion MedicinesMental Health Clothing & DyesClimate Control FuelsTourism Decoration & PrivacyHobby
Classifying Plants: -Aquatic or Terrestrial -Prevention of Water Loss -Spores or Seeds -Vascular or Nonvascular
Nonvascular Plants: -mostly terrestrial -produce spores -need water to reproduce -very small plants Phyla: Bryophyta…mosses Hepatophyta…liverworts Anthocerophyta…hornworts
Vascular Seedless Plants: -have xylem and phloem -spores -can grow larger than nonvascular plants Phyla: Psilophyta…whisk ferns Lycophyta…club mosses Sphenophyta…horsetails Pteridophyta…ferns
Vascular Seed Plants: -gymnosperm or angiosperm -have xylem and phloem -seeds -can be flowering -can grow larger than nonvascular plants Phyla: Cycadophyta…Cycads (gymnosperm) Ginkgophyta…Gingkoes (gymnosperm) Coniferophyta…Conifers (gymnosperm) Gnetophyta…Cone-bearing, odd (gymnosperm) Anthophyta…Flowering (angiosperm)
Major Plant Structures: 1. Roots -Tap -Fibrous -Adventitious: grow in uncommon places; specialized roots Root Hairs: increase surface area
2. Stems -woody -herbaceous -stolons: Grow along soil surface -tubers: store energy -fleshy: store water and carry out photosynthesis
3. Leaves -guard cells: regulate gas and water exchange -stomata: open during the day and close at night
4. Flowers -pollination -fertilization -seeds and fruits
Adaptations to prevent water loss… Waxy covering? Vascular tissue? Stomata?
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29.2, 29.3, & Major Functions: anchor plant to soil, absorb and transport water and nutrients, and store water and organic compounds How do.
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Mr. Ramos Plant Organs and Tissues. Introduction to Plants There are over 260,000 different species of flowering plants alone! Plants are multicellular,
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“Stationary Animals that Eat Sunlight!!”
How are plants classified? Lesson 3. Vocabulary Gymnosperm: a seed plant that does not produce a flower. They include pines, firs, and other cone-bearing.
A. Two types of plants: 1. Non-vascular, 2. Vascular.
Plant Evolution and Classification. Adapting to Land More exposure to sunlight Increased CO 2 levels Greater supply of inorganic nutrients Susceptible.
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