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![Page 1: Vascular plants Spore Gymnosperm Angiosperm Germinate · PDF file04/09/2017 · nutrients from the roots to the other parts ... •Since angiosperm seeds are often enclosed in fruit,](https://reader034.fdocuments.in/reader034/viewer/2022042801/5aae771a7f8b9a3a038c359c/html5/thumbnails/1.jpg)
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Copyright © Houghton Mifflin Harcourt Publishing Company
Nonvascular plants
Vascular plants
Spore
Gymnosperm
Angiosperm
Germinate
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Tubes for Transport – Warm Up 1
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Tubes for Transport
Copyright © Houghton Mifflin Harcourt Publishing Company
• Nonvascular plants are simple plants that lack vascular tissue, which easily transports water from the ground into the plant.
• They grow in damp places and almost never grow taller than 10 cm.
• Nonvascular plants move materials by absorbing nutrients and water in the same way that a sponge absorbs water.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Tubes for Transport
Copyright © Houghton Mifflin Harcourt Publishing Company
• Vascular plants have vascular tissues that allow them to move water, nutrients, and sugars across long distances.
• Vascular plants have true leaves and roots. • Most plants, including trees, grasses, and
shrubs, are vascular plants.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Tubes for Transport
Copyright © Houghton Mifflin Harcourt Publishing Company
• Vascular tissue contains tiny tubes, which move water and nutrients up a plant in the same way that water moves up a straw.
• Vascular tissue includes two kinds of smaller tubes. Xylem carries water and nutrients from the roots to the other parts of the plant.
• Phloem carries sugar from the leaves to the rest of the plant.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Tubes for Transport – Exit Slip 1
Copyright © Houghton Mifflin Harcourt Publishing Company
Why are the xylem and
phloem important for
vascular plants?
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
No Seeds, Please!
Copyright © Houghton Mifflin Harcourt Publishing Company
• A spore is a single reproductive cell that can grow into a new plant.
• Both nonvascular plants, such as mosses and liverworts, and vascular plants, such as ferns, use spores to reproduce.
• All of these plants have 2 forms in their life cycles.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
No Seeds, Please! – Warm Up 2
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
No Seeds, Please!
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
No Seeds, Please!
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
No Seeds, Please! – Exit Slip
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Seed Power!
Copyright © Houghton Mifflin Harcourt Publishing Company
• While spores need to stay moist and sprout soon after release, seeds have a covering that protects them until conditions are right for sprouting.
• Gymnosperms are plants that do not produce seeds in flowers. Gymnosperm seeds have a protective seed coat, but are not enclosed by fruit.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Seed Power!
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Seed Power! – Warm Up 3
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Seed Power!
Copyright © Houghton Mifflin Harcourt Publishing Company
• Cone-producing plants,
called conifers, are the most common gymnosperms. Conifers include pine, fir, spruce, and cedar trees.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Seed Power!
Copyright © Houghton Mifflin Harcourt Publishing Company
• Angiosperms are plants that produce seeds in flowers.
• Since angiosperm seeds are often enclosed in fruit, they are easily spread when animals eat the fruits.
• Gymnosperm seeds may also be spread by animals, but typically fall to the ground and grow where they land.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Seed Power! – Exit Slip 3
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Seed Power! – Warm Up 4
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit and Seed
Copyright © Houghton Mifflin Harcourt Publishing Company
• Typical flowers have both male and female reproductive parts.
• A male part, the anther, produces pollen, or the sperm.
• The female parts include the stigma and the ovary, which contains eggs in ovules.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit to Seed
Copyright © Houghton Mifflin Harcourt Publishing Company
• Identify the following parts of a flower: anther, ovary, ovules, petals, stigma.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Comparing cones and fruits
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The seeds of the gymnosperms are attached to the outside of the cone
scales with no coverings.
The seeds of the angiosperms are completely covered by a fruit.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit to Seed
Copyright © Houghton Mifflin Harcourt Publishing Company
1. Flowers produce nectar that organisms may eat. When an organism gathers nectar, pollen may brush onto it.
2. The organism carries this pollen when it moves to the next flower. This process is called pollination.
3. When the pollen reaches the stigma, it travels down to the ovary and fertilizes the ovules. This process is called fertilization.
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit to Seed
Copyright © Houghton Mifflin Harcourt Publishing Company
• Fertilized ovules develop into seeds, and the ovule wall becomes a seed coat. The ovary that holds the seeds develops into the fruit, such as a pumpkin.
• The development of a pumpkin seed into a mature pumpkin fruit follows a sequence of events…
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit to Seed
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit to Seed- Exit Slip 4
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit to Seed - Classwork
Copyright © Houghton Mifflin Harcourt Publishing Company
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Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
From Flower to Fruit to Seed - Classwork
Copyright © Houghton Mifflin Harcourt Publishing Company
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How Seeds Grow
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• Seeds have a hard outer coat that protects them and allows them to rest until the environment is right for growing.
• Many plant seeds rest during winter and then germinate, or start to grow, when the ground becomes warm and moist in the spring.
Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
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How Seeds Grow
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
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How Seeds Grow - Oral
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
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Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
Classwork
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Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 4 Lesson 3 How Do Plants Grow and Reproduce?
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Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 4 Lesson 3 How Do Plants Grow and Reproduce?