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Questions and Answers
Which of the following groups of plants is considered to be the most complex?
When did evidence of the emergence of land plants first occur?
Which group of plants has been displaced by flowering plants in terrestrial environments?
When did communities of complex, multicellular photosynthesizing organisms exist on land?
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Which of the following groups of plants continue to thrive in marine environments?
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Which part of a plant can be considered a vegetable?
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What are geophytes?
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Which of the following is an example of an edible taproot?
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What did Native Americans use Lewis' bitterroot for?
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Why were roots collected and dried by Native Americans?
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Study Notes
Plant Complexity
- Flowering plants are considered the most complex group of plants.
Emergence of Land Plants
- Evidence of land plants first emerged around 470 million years ago.
Displacement of Plants
- Bryophytes (non-vascular plants) have been displaced by flowering plants in terrestrial environments.
Multicellular Photosynthesizers
- Communities of complex, multicellular photosynthesizing organisms existed on land around 420 million years ago.
Marine Environments
- Algae and seaweeds continue to thrive in marine environments.
Vegetable Definition
- Any edible part of a plant can be considered a vegetable.
Geophytes
- Geophytes are plants that store their food in underground structures, such as roots, tubers, or corms.
Edible Taproot
- Carrots are an example of an edible taproot.
Lewis' Bitterroot
- Native Americans used Lewis' bitterroot for medicinal purposes.
Root Collection
- Native Americans collected and dried roots to preserve them for food during the winter.
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Description
Explore the fascinating journey of plant evolution from algal mats to flowering plants. Test your knowledge on the diverse groups of plants that have shaped our planet over millions of years. Discover the key milestones in plant evolution and learn about the survival strategies that have allowed certain groups to thrive in various environments.
