4th grade ch. 2 lesson 4 what is the life cycle of a plant?
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Ch. 2 Lesson 4What is the life
cycle of a plant?
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dormant• state of rest
• seed stays dormant if it does not have right conditions to germinate
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Most seeds that plants make never grow to be plants.
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ways seeds move:
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1. carried by animals-seeds hook on animal
bur
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2. eaten by animals
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3. wind
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4. water
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mosses• reproduce by spores
(single tiny cells) in 2 step cycle
• need moisture to germinate
• 2 step life cycle:
1. Plant makes spore
2. Male & female cells combine
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Ways to grow new plants from plant parts:
1. Bulbs (tulips)=underground stems
2. Cuttings from stems, plants or leaves
3. Grafting