four types of plants non-vascular vascular gynosperms angiosperms
TRANSCRIPT
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Four Types of Plants
• Non-vascular• Vascular• Gynosperms• Angiosperms
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Nonvascular plants: Mosses
• Characteristics• no water transport system
• rhizoids used to anchor
• spores for reproduction• no seeds
Where mustmosses live?
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Peat Bog
“Peat Moss”
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Primitive Vascular Plants: Ferns• Characteristics
• internal transport system• xylem/phloem & roots
• swimming sperm• need water to reproduce
• spores for reproduction• no seeds
• First true roots, stems, leaves
sporesWhere mustferns live?
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Ancient Tree Ferns
Carboniferous forest – 290-350 myaForests of ferns & mosses decayed into deposits of coal & oil
Fossil fuels…I get it!
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Ferns - adaptations
• See the first true• Roots• Stems• Leaves
• Still considered primitive because ferns are still dependent on water for reproduction
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Gymnosperms (conifers)• Characteristics• internal transport
• xylem/phloem, roots• seeds
• “naked” seeds in cone (no fruit)• pollen
• sperm that doesn’t have to swim
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Diversity in conifers
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Cones & “naked” seeds
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male
female
male (pollen) cones
female cones
sporangium & pollen
pine embryo
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Flowering plants• Characteristics • internal transport system
• xylem/phloem, roots• flower
• specialized structure for sexual reproduction• pollen
• sperm that doesn’t have to swim• seeds within fruit
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FLOWER: specialized structure found in angiosperms
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Anther
FilamentStamen
StigmaStyleOvary
Carpel
Sepal
Petal
Ovule
Flower • 4 rings of flower parts• sepals• petals• stamens
• male• carpel
• female
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Identify the flower structures…
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Flower variations