Colonial theory of multicellularity
[DOC File]How Life Began – Evolution’s Three Geneses
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The move to multicellularity is a new genesis because, like Lego pieces, it provides a new and unlimited way of constructing novel organisms by the addition of different combinations of pieces in different ways. The creative power of multicellularity lies in its modularity.
[DOC File]Cells
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Cell Theory - 3 parts. 1.) All living things are composed of 1 or more cells. 2.) In organisms, cells are basic units of structure and function. 3.) Cells are produced only from existing cells. Looking at Cells. A cell’s shape reflects the cell’s function. There are at least 200 types of cells and the human body is made up of about 100 ...
[DOCX File]Unit 5: History of Earth & Evidence for Evolution of Life
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The theory of common descent, proposed by Charles Darwin, was revolutionary because it introduced the concept of gradual evolution based on natural mechanisms. The theory of common descent also replaced a model of straight-line evolution with that of a branching model based on a single origin of life and subsequent series of changes ...
[DOC File]CHAPTER 28
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The origin of the eukaryotic cell and the emergence of multicellularity unfolded during the evolution of protists. A. Introduction to the Protists. ... Most of the 60,000 known protists are unicellular, but some are colonial and others multicellular.
[DOC File]PROTOZOA - Valencia College
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Evolution of Multicellularity. Volvox and several related green flagellates are often studied as models to illustrate one popular theory for the evolution of multicellular organisms. Most scientists believe that multicellular organisms arose from some unicellular form.
[DOCX File]APSU Biology
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3330 Exam 2 Review Spring 2011. Chapter 8 Key Concepts. Eduardo Sixto ~Based on microfossils there is a two billion year diversification period where cells created by abiogenesis, ~4.0-3.5 Bya, developed into the basis for the eukaryotic cells, 2.5-2.8 Bya. ~The first successful
[DOCX File]*significant difference b/t post and pre on item #2
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The origin of multicellularity from unicellular ancestors was a major transition in evolution (Maynard Smith and Szathmary, 1995). Despite its fundamental importance in the evolution of large, complex organisms, the evolution of multicellularity has never (to our knowledge) been incorporated into student labs or active-learning exercises.
[DOCX File]North Hunterdon-Voorhees Regional High School District
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1. Multicellularity. Ponder this one in the bath. Chances are you've just scrubbed your back with a choice example of one of evolution's greatest inventions. Or at least, a good plastic copy. Sponges are a key example of multicellular life, an innovation that transformed living things from solitary cells into fantastically complex bodies.
[DOCX File]Exam 2 Study Guide Chapters 8-14 - APSU Biology
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Multicellularity probably began when dividing cells stopped separating after mitosis and cytokinesis Advantages include increased size and opportunity for cell differentiation and specialization Multicellular organisms then evolved into forms in which most cells were somatic while a few were reproductive, forming gametes by meiosis
[DOC File]Phylogenies .edu
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Discuss the evolutionary origin of the following traits: mitochondria, chloroplasts, cell wall, multicellularity. Which are thought to have evolved once and which more than once? How is this reflected in the phylogeny of Eukarya? Outline the steps in the endosymbiosis theory for the origin of …
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