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Cooksonia 408 MYA. Xylem. Vessels. and. Tracheids. Phloem sieve elements. Garlic Roots. Fibrous. Tap ...
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Sporangia placement on Cooksonia, Zosterophyllum, Lycopodium ... Known from the Devonian (see ... Hans' Paleobotany Pages website. Phylum Zosterophyllophyta ...
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Transitional Fossils Evidence for Evolution Seminar Talline Martins and Heidi Hillhouse 02-14-06 Outline Introduction to transitional fossils Case studies Vascular ...
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Devonian the Age of Fish Dunkelosteus Life on Land First fossils of life on land Ordovician Period Possibly Middle Cambrian Why did Earth go so long without life ...
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Seedless Vascular Plants Plants with a vascular system but no seeds Seedless Vascular Plants Phylum Pterophyta Phylum Lycophyta Phylum Sphenophyta Phylum Psilophyta ...
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Cooler climate caused more tropical species to go extinct ... Ray-finned fish. Coelacanths. Coelacanth distribution. Lungfishes. How to make a leg out of a fin ...
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Lesson Overview 22.1 What is a Plant? The Plant Kingdom Plants are classified as members of the kingdom Plantae. Plants are eukaryotes that have cell walls containing ...
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plants tend to be highly resistant to mass extinctions. ... Permian Mass Extinction. 90-95% of marine species became extinct in the Permian ...
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Lesson Overview 22.1 What is a Plant? Characteristics of Plants What do plants need to survive? The lives of plants center on the need for sunlight, gas exchange ...
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Retour vers index Naissance de la vie V g tale sur terre Cliquer droit pour plein cran
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The Early Paleozoic Era Geology 103 Precambrian Washington doesn t exist In fact, you d have to go to the Idaho-Montana border to see rocks of Precambrian age ...
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Spore Shedding Vascular Plants
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Title: PowerPoint bemutat Author: selmeczi Last modified by: Cserny Tibor Created Date: 2/5/2004 7:53:39 AM Document presentation format: Diavet t s a k perny re
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Title: No Slide Title Author: Thomson - Brooks/Cole Last modified by: Carrie Masiello Created Date: 12/26/2002 5:26:08 PM Document presentation format
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Figure 29.3 Apical meristems of plant shoots and roots. Figure 29.4 Embryos of land plants: Marchantia (left), Shepherd's purse (right) ...
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Chapter 29 Plant Diversity I: How Plants Colonized Land Figure 29.2 Charophyceans: Chara (top), Coleochaete orbicularis (bottom) Figure 3.2 Water transport in plants ...
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Unit 7 Plants Ch. 22 Plant Diversity What is a Plant? Plants are multicellular eukaryotes that have cell walls made of cellulose They develop from multicellular ...
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Lecture 11: Algae, Bryophytes and Ferns Kingdom Protista: Algae Red algae, diatoms, kelps, dinoflagellates, green algae Significance of algae to humans
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Naissance de la vie V g tale sur terre Le syst me solaire a t form il y a environ 5 milliards d'ann es et notre Terre il y a environ 4,6 milliards d'ann es.
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... Waxy cuticle Gametangia Features still ... Life Cycle of a Conifer Most plants are angiosperms The hallmarks of these plants are flowers The angiosperm ...
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are evidence of one of the earliest four-legged animals on land. Photo courtesy of Ken Higgs, U. ... and larval stages. The evolutionary pathway to vertebrates ...
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Title: PowerPoint Presentation Last modified by: consip Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles
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vascular cambium, cork cambium, periderm. tracheary elements, tracheids, vessel elements ... Cambium produces 2 tissues w/ sieve elements/tracheids/ parenchyma ...
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Mudstone channel fills encased in tabular beds of sand. ... porcellanous (miliolid) forms occur in lower to middle marsh, and may occur down ...
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Title: Slide 1 Author: Computing & Information Services Last modified by: reviewer Created Date: 5/12/2006 1:39:39 PM Document presentation format
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Lesson Overview 1.3 Studying Life * * * * * * * * * Characteristics of Living Things What characteristics do all living things share? Living things: are made up of ...
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Title: Life: The Science of Biology, 8e Last modified by: sa Created Date: 10/16/2000 7:08:56 PM Document presentation format: On-screen Show Company
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CHAPTER 29 PLANT DIVERSITY I: HOW PLANTS COLONIZED LAND ... first land plants opened an expanse of terrestrial habitat previously occupied ...
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Title: Table of Contents Author: Wendy Beck Last modified by: Jason Dirks Created Date: 10/16/2000 7:08:56 PM Document presentation format: On-screen Show
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NONVASCULAR AND SEEDLESS VASCULAR PLANTS The earliest plants grew in areas like the coastal mud flats of the Devonian (410 million years ago): The non-vascular : Moss ...
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The origin of life Goals The fossil record for very early life Chemical evolution amino acids to DNA The advance of life Cambrian Explosion * ...
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Chapter 13 Paleozoic Life History: Vertebrates and Plants ...
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... of valleys and hills. Alleles on hill more fit. NS preserves ones on the hill ... HARDY-WEINBERG THEOREM: IDEA DEVELOPED TO DETERMINE IF A POP. WAS EVOLVING. ...
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Hep ticas. Antocerotas (suprimir) Musgos. La diversidad en el reino metafitas ... Gametofitos de hep tica (Munietsos, 22.04.2004) Gametofitos de musgo ...
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All green plants arose from a single species of freshwater algae ... Volvox -Colonial chlorophyte -Hollow sphere of a single layer of 500-60,000 cells ...
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CHAPTER 29 PLANT DIVERSITY I: HOW PLANTS COLONIZED LAND 1. Evolutionary adaptations to terrestrial living characterize the four main groups of land plants
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AMPHIBIAN. MODERN COELACANTH. AMPHIBIANS. ICHTHYOSTEGA. REPTILES. LIMBS. LUNG. SKIN. AMNIOTIC EGG. MORE ABOUT REPTILES IN THE MESOZOIC. EARLY PLANTS OF THE ...
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See Pic Next Slide. Cont... transition from hunter-gather societies ... Agriculture allowed us to stay in one place and move from a hunter-gather society ...
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Dominated forest landscapes of Carboniferous period. 360 - 290 million years ago ... Seedless vascular plants were widespread during the Carboniferous period ...
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Lesson Overview 1.1 What Is Science? Ecology and Evolution of Infectious Diseases For example, a wildlife biologist studies a group of wild gelada baboons.
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By Late Devonian there were forests of large tree-size plants up to 10 m tall. ... Example: Pine trees. ... Similar to today's palm trees. ...
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apical meristems - site of primary growth; lateral meristems - site of secondary ... Primary growth originates in the apical meristems and results in increases in ...
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