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Chapter 30

Chapter 30

Chapter 30. Plant Diversity II: The Evolution of Seed Plants. Overview: Transforming the World. Seeds changed the course of plant evolution, enabling their bearers to become the dominant producers in most terrestrial ecosystems

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700 views • 54 slides
Chapter 38

Chapter 38

Chapter 38. Plant Reproduction and Biotechnology. Unique features of the angiosperm life cycle: 1. flowers, 2. double fertilization, and 3. fruits. Diploid (2 n ) sporophytes produce spores by meiosis; these grow into haploid ( n ) gametophytes

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814 views • 52 slides
Chapter 30

Chapter 30

Chapter 30. Plant Diversity II: The Evolution of Seed Plants. Overview: Transforming the World. Seeds changed the course of plant evolution, enabling their bearers to become the dominant producers in most terrestrial ecosystems

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587 views • 44 slides
Chapter 38

Chapter 38

Chapter 38. Plant Reproduction and Development. Alternation of Generations. Angiosperms and other plants exhibit alternation of generations: haploid ( n ) and diploid ( 2n ) generations take turns producing each other Sporophyte: diploid plant that produces haploid spores by meiosis

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727 views • 39 slides
Chapter 29

Chapter 29

Chapter 29. Plant Diversity. You should now be able to:. Describe four shared characteristics and four distinct characteristics between charophytes and land plants Diagram and label the life cycle of a bryophyte

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488 views • 33 slides
Ch. 24- Reproduction of Seed Plants

Ch. 24- Reproduction of Seed Plants

Ch. 24- Reproduction of Seed Plants. Haploid Diploid. I. Reproduction With Cones and Flowers A. Alternation of Generations - All plants have a life cycle in which a diploid sporophyte generation alternates with a haploid gametophyte generation. MEIOSIS. Gametophyte Plant (N).

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Ch. 24- Reproduction of Seed Plants

Ch. 24- Reproduction of Seed Plants

Ch. 24- Reproduction of Seed Plants. Haploid Diploid. I. Reproduction With Cones and Flowers A. Alternation of Generations - All plants have a life cycle in which a diploid sporophyte generation alternates with a haploid gametophyte generation. MEIOSIS. Gametophyte Plant (N).

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13.3 Nonflowering Vascular Plants

13.3 Nonflowering Vascular Plants

13.3 Nonflowering Vascular Plants. Gymnosperms. Nonflowering vascular plants that produce seeds are called gymnosperms. Conebearing trees, such as pine and redwood, are the most common gymnosperms alive today.

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577 views • 26 slides
Chapter 30 Plant Diversity II: Evolution of Seed Plants

Chapter 30 Plant Diversity II: Evolution of Seed Plants

Chapter 30 Plant Diversity II: Evolution of Seed Plants. AP Biology. Seed Plants. Sporophyte dominant Being diploid allows carrying recessive alleles from one generation to the other Eventually, these recessive alleles may be selected for All heterosporous Megasporangia

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418 views • 23 slides
Chapter 30 Plant Diversity II: Evolution of Seed Plants

Chapter 30 Plant Diversity II: Evolution of Seed Plants

Chapter 30 Plant Diversity II: Evolution of Seed Plants. AP Biology. Seed Plants. Sporophyte dominant Being diploid allows carrying recessive alleles from one generation to the other Eventually, these recessive alleles may be selected for All heterosporous Megasporangia

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236 views • 23 slides
Lesson Overview

Lesson Overview

Lesson Overview. 22.3 Seed Plants. THINK ABOUT IT. Seeds are so common that they are easy to overlook. What are seeds?

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Plant Reproduction and Responses

Plant Reproduction and Responses

Plant Reproduction and Responses. By Michael Hohl,Sam Melville, Jordan Petersen, and Matt Rosenthal. Life Cycles of Plants. Main Idea: plants cycle through haploid(n) gametophyte and diploid(2n) sporophyte generations.

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276 views • 18 slides
Reproduction in Angiospermophytes

Reproduction in Angiospermophytes

Reproduction in Angiospermophytes . Topic 9.3. Assessment Statements. 9.3.1 Draw and label a diagram showing the structure of a dicotyledonous animal-pollinated flower. 9.3.2 Distinguish between pollination , fertilization and seed dispersal .

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252 views • 18 slides
Seed Plants

Seed Plants

Seed Plants. SBI 3C0. Seed Plant Characteristics. All seed plants have the structures that people commonly associate with plant life: roots, stems, and leaves. It is a diverse group that has a huge variety of adaptations in size, shape, colour, and other characteristics.

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447 views • 18 slides
Evolution of the Seed Plant

Evolution of the Seed Plant

Evolution of the Seed Plant. 3 Important Adaptations. Reduction of gametophyte Advent of the seed Evolution of pollen. In seed plants, the miniature female gametophytes develop from spores that are retained with the sporangia of the parental sporophyte.

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366 views • 15 slides
Evolution of the Seed Plant

Evolution of the Seed Plant

Evolution of the Seed Plant. 3 Important Adaptations. Reduction of gametophyte Advent of the seed Evolution of pollen. In seed plants, the miniature female gametophytes develop from spores that are retained with the sporangia of the parental sporophyte.

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157 views • 15 slides
Plant Diversity I

Plant Diversity I

Plant Diversity I. Plant Kingdom is Monophyletic: one common ancestor. Primary Products: main metabolic pathways Amino acid synthesis Production of cellulose Products needed for growth and development. Secondary Products: products for survival but not central metabolic needs Protection

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KEY CONCEPT All plants alternate between two phases in their life cycles.

KEY CONCEPT All plants alternate between two phases in their life cycles.

KEY CONCEPT All plants alternate between two phases in their life cycles. A two-phase life cycle is called alternation of generations. haploid phase diploid phase alternates between the two. SPOROPHYTE PHASE. fertilization. meiosis. GAMETOPHYTE PHASE.

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187 views • 8 slides
KEY CONCEPT All plants alternate between two phases in their life cycles.

KEY CONCEPT All plants alternate between two phases in their life cycles.

KEY CONCEPT All plants alternate between two phases in their life cycles. A two-phase life cycle is called alternation of generations. haploid phase diploid phase alternates between the two. SPOROPHYTE PHASE. fertilization. meiosis. GAMETOPHYTE PHASE.

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86 views • 8 slides
Sporophyte 2n

Sporophyte 2n

Anthers (2n ): contain microsporocytes (2n) which give rise (via meiosis) to microspores (n ) which become pollen grains, from which male gametophytes (n) grow. Sporophyte 2n. Plant group: Angiosperm Phylum Anthophyta , Structure: Flower anthers (male) .

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97 views • 1 slides

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