'Pollen grain' diaporamas de présentation

plants

plants. Plants are multicellular, eukaryotic, autotrophic with cell walls made of cellulose. Land plants evolved from green algae, based on 3 key traits: both contain chlorophyll a and b Both store excess carbohydrates as starch Both have cellulose in their cell walls.

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SEXUAL REPRODUCTION IN FLOWERING PLANTS

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Lecture 19

Lecture 19. Principles of optical microscopy. Illumination conjugate planes are shown in red; an image of the lamp filament is in focus at these planes Imaging path conjugate planes are shown in red; an image of the specimen is in focus at these planes.

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Chapter 30

Chapter 30. Plant Diversity II Seed Plants. Evolution of Seed Plants (angiosperms and gymnosperms). Seeds changed the course of plant evolution Enabling their bearers to become the dominant producers in most terrestrial ecosystems Seed plants arose about 360 million years ago.

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Sex, Seeds, and Science

Sex, Seeds, and Science. Meghan Miceli , Gabrielle Quilliam, and Yena Lee. Agenda. Introductory Video Seed structure and function Seed Development Anatomy Reproduction of Plants Life cycles of gynmosperms and angiosperms Test Your Knowledge Closing Song. Seed Structure.

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Seed Plants

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Seed Plants

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Forenisc Botany

Forenisc Botany. Spring 2013. Forensic Palynology. The use of pollen and spore evidence to help solve criminal cases. Some Vocabulary. Angiosperm- a flowering plant that produces seeds within a fruit Exine - outer layer of the wall of a pollen grain or spore

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Seed Plants

Seed Plants. Two groups of seed plants: Gymnosperms Angiosperms Gymnosperms include the conifers and cycads and this group originated in the Carboniferous period.

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Chapter 14

Chapter 14. Plants and Fungi. Plant Characteristics. Plants are multicellular eukaryotes. Almost all are photosynthetic. Evolved from green algae Forms a multicellular embryo that forms, develops within, and is nourished by tissues of the parental plant. Life on Land.

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Plant Diversity II: Evolution by Seed Plants

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Plant Science

Plant Science. Unit 2 Lesson 1: Plant Cell Structure and Microscope Lab. T he A mazing Plant c ell!!. Why are Plant Cells so Amazing?. CONVERT FOOD INTO ENERGY. ADAPT TO OUTSIDE STIMULI. Cells can determine :. How productive plants will be. How food tastes! Why plants get sick.

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Warm-Up #30

Warm-Up #30. Complete the Analyzing Data on page 620 of your textbook. Leaf Lab Review. Reproduction of Seed Plants. Objectives. Identify the reproductive structures of gymnosperms and angiosperms. Describe the development of seeds and fruits. Explain how seeds are dispersed.

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PLANT KINGDOM

PLANT KINGDOM. MOSSES. No vascular tissue (tubes) for transporting food and water so that nutrients must slowly seep from one cell to the next. No true roots, stems or leaves. Therefore, they must live in moist, shady areas and frequently grow in clusters.

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Plant Reproduction and Development

Plant Reproduction and Development. Chapter 28. Angiosperm Life Cycles. Dominant form is the diploid sporophyte In flowers, haploid spores formed by meiosis develop into gametophytes. mature sporophyte. seed. meiosis (within anther). meiosis (within ovary). DIPLOID HAPLOID.

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Structure and Function in Living Things

Structure and Function in Living Things. Chapter Sixteen: Plants. 16.1 What are Plants? 16.2 Roots, Stems, and Leaves 16.3 Reproduction in Flowering Plants. Investigation 16B. Flower Dissection. How does the design of flower help in its pollination?.

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NanoLab

NanoLab. Physics 4970 Spring 2007 TR 14:30-16:20 development funded by a grant from National Science Foundation Nanotechnology Undergraduate Education. The Scale of Things -- Nanometers and More. 1 cm 10 mm. 10 -2 m. Head of a pin 1-2 mm. 21 st Century Challenge.

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LECTURE 3 REPRODUCTIVE STRUCTURES

LECTURE 3 REPRODUCTIVE STRUCTURES Flowering Floral Induction Leaves Floral Stimulus Florigen Phloem Transport Floral Evocation Reproductive Apex Leaf Primordia ? Floral Primordia Sepals (A) Petals (A+B) Stamens (B+C) Pistils (C) Vegetative Apex SAM Tunica Corpus

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1. What is it?

8. What are its costs & benefits?. 9. How do we evaluate it?. 5. How does it change?. 6. How does it change us?. 7. How do we change it?. 1. What is it?. 2. Why do we use it?. 3. Where does it come from?. 4. How does it work?. 0. Introduction. You are here.

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