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reproduction

Origins of Eukaryotic Diversity

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Overview: AWorld in a Drop of Water ? In the past, taxonomists classified all protists in a single kingdom, Protista. ? However, it is now clear that Protista is in fact paraphyletic. ? Some protists are more closely related to plants, fungi, or animals than they are to other protists. ? As a result, the kingdom Protista has been abandoned. ? Various lineages are recognized as kingdoms in their own right. ? Scientists still use the convenient term protist informally to refer to eukaryotes that are not plants, animals, or fungi. Concept 28.1 Protists are an extremely diverse assortment of eukaryotes ? Protists exhibit more structural and functional diversity than any other group of organisms.

chapter 13 reading guide

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AP Biology Name _________________________ Chapter 13 Guided Reading Compare and contrast asexual and sexual reproduction.?? Define the following terms: Life cycle? Somatic cell? Karyotype? Homologous chromosomes? Sex chromosomes? Autosomes? Diploid cell? Haploid cell? Fertilization? Zygote? meiosis? How are karyotypes prepared???? Describe the three different types of life cycles.????? What exactly is meant by alternation of generations???? Complete the diagram below outlining an overview of meiosis.???? What are the two broad goals of meiosis??? Label the following diagrams of meiosis.?????? Summarize the comparison of mitosis and meiosis.????????? Describe in detail the three sources of genetic variation in meiosis. ?????? ?????? ???

Biology - Modern Plants

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Modern Plants Bryophytes (mosses) and Relatives Pteridophyta (Ferns) and Relatives Gymnosperms and Relatives Angiosperms and Relatives Examples Mosses, Liverworts, Hornworts Ferns, Psilotum (whisk fern), Lycopodium, Equisetum (horsetails) Conifers, Gingko, cycads Flowering plants, grasses, hardwoods Transport(xylem and phloem) Mostly Nonvascular Vascular Vascular Vascular Life Cycle Gametophyte (N) dominant Sporophyte dominant, small separate Gametophyte Sporophyte dominant Sporophyte dominant Spores or Seeds Spores Spores Seeds Seeds Fertilization Water Water Wind (Pollination) Wind/ animals (Flowers) Dispersal Water/ Wind Spores Water/ Wind Spores Wind Seeds Wind/ animals (Fruits) Seeds

AP Biology Test Bank Chapter 13

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Campbell's Biology, 9e (Reece et al.) Chapter 13 Meiosis and Sexual Life Cycles New questions are mostly at higher skill levels in this chapter. The new questions represent newer material both in the chapter and in the area of biological research. All questions with accompanying art work or questions grouped together as sets have been organized at the end of the chapter. Multiple-Choice Questions 1) If a horticulturist breeding gardenias succeeds in having a single plant with a particularly desirable set of traits, which of the following would be her most probable and efficient route to establishing a line of such plants? A) Backtrack through her previous experiments to obtain another plant with the same traits.

Women's Rights Paper

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The?Fight?Against?Legal?Abortion?Is?a?Result?of?the?Suppression?of?Women?s?Roles?and?Freedoms. While?Argued?Otherwise,?This?Fight?is?Not?Rooted?in?Moral?Agenda. Tal?Bruno Honors?US?History Mr.?Whitehair March?20,?2013 1 The?fight?against?legal?abortion?is?a?result?of?the?suppression?of?women?s?roles?and?freedoms. While?argued?otherwise,?this?fight?is?not?rooted?in?moral?agenda.?In?her?widely?acclaimed?piece??The Second?Sex?,?feminist?author?Simone?De?Beauvoir?asks:??what?is?a?woman???Despite?a?dictionary definition?of???woman??as?an??adult?human?female?,?the?question?is?much?deeper?than?its?literal?meaning, and?the?response?lies?within?the?purpose?of?the?woman?s?existence. Throughout?history,?conservatively?sexist?mindsets?have?suppressed?and?overshadowed?the

Cycles of Life Teacher Guide 1st 6 episodes

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Cycles of Life: EXPLORING BIOLOGY Module 1: Biological Concepts Segment 1: The Unity and Diversity of Life Objectives: 1. List and describe major characteristics of living things that distinguish them from non-living matter. 2. Describe the general pattern of energy flow through the earth?s life forms, and explain how their interactions help cycle the earth?s resources. 3. Explain what is meant by the term unity, and identify possible causes of similarities between earth?s organisms. 4. Explain what is meant by the term diversity, and identify possible causes for the great diversity of life forms on earth. Video Synopsis: Beginning with the features that distinguish living matter from non-living matter, this segment provides

Ch. 46 Notes*

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Ch 46 Sexual Zygote ? fertilized egg Gamete- sex cell Egg Sperm Asexual Most animals do sexy only, but some do asex or both Mechanisms of Asex reproduction Invertebrates Fission-separation of a parent organisms into 2 individuals of equal size Sea anemone Budding- new individuals come from outgrowth of existing ones Corals Fragmentation and regeneration Sponges, cnidarians Parthenogenesis-asex where egg develops without being fertilized Bees, wasps, ants Haploid ? no meiosis occurred, no fertilization occurred, becomes adult that makes either egg or sperm. ? mainly male in honeybee and some ant populations Diploid- develop from fertilized eggs, becomes adult- worker ant or bees

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