Bio 201 F08 True lect 11v3r

Bio 201 F08 True lect 11v3r - 1st midterm exam Mon Sep. 29,...

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1st midterm exam Mon Sep. 29, in class – On material through Wed. 9/24 – 35 multiple choice questions – 3 bonus factoids, can only help, cannot hurt Be on time! – Bring your SBU ID and pencils , that’s all Practice questions posted on BB Review session – Friday Sept. 26, 1-3pm Life Sciences 038 – Bring your questions.
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Error in last lecture (lect. 10 9/24/08) • Slide on ‘ The fungal lifestyle: nutrient sources’ • Some fungi are facultative; can switch between saprobic and parasitic lifestyles – (not between saprobic and saprophytic) Saprobic = feeding on decaying organic matter – Saprophytic is an old term meaning essentially the same thing as saprobic (no longer used)
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Metazoa Metazoa – Multicellular Animals (aka “metazoans”) Today > 35 phyla of animals (book only talks about some of these) more have existed in the past Fossil record - good for animals with hard parts - rare for soft animals Animals share these synapomorphies multicellularity mobility heterotrophy
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Diversity of animal life: from unicellular life ~ 1200 – 900 mya Most phyla show up in fossil record ~ 570 mya (“Cambrian Explosion”)
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Cambrian - fst appearance oF animals with hard skeletons Sudden appearance oF most modern phyla about 550 mya " Cambrian Explosion Cambrian Explosion " Continent of Laurentia Note: this was beFore Pangaea (~250 mya)
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The Burgess shale: the frst menagerie oF the Cambrian Early-mid Cambrian animals of the Burgess shale, Canada All are marine forms.
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Burgess Shale Fauna Burgess Shale Fauna Important fossil formation Soft bodied animals -
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This note was uploaded on 04/14/2009 for the course BIO 201 taught by Professor True during the Fall '08 term at SUNY Stony Brook.

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Bio 201 F08 True lect 11v3r - 1st midterm exam Mon Sep. 29,...

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