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L9 - Lab 8 - Invertebrates I

L9 - Lab 8 - Invertebrates I - Lab Exam 1 Results grading...

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Lab Exam 2: Week of Dec. 1st Study Resources: 1) Lectures (webcast) 2) Reviews- 4 hours (linked) 3) Pre-labs and worksheets 4) Charts, our website (images) Lab Exam 1 Results- grading criteria
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Invertebrate I: Introduction Various phyla: Porifera & Cnidaria Platyhelminthes Annelida & Mollusca Readings: Lab Manual pgs 149-166. Campbell 630-655, 831-833, 1011-1012.
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Timeline: A. 4,600 mya - formation of earth B. 2,100 mya - eukaryote fossils C. 1,200 mya - multi-cellular euk fossils D. 550 mya - Cambrian explosions mollusks, annelids, arthropods, echino E. 500 mya - vertebrates
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Cladogram (p. 159)
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P. 160 Cestoda Trematoda Turbellaria Hydrazoa Anthozoa Scyphozoa Cubozoa Oligochaetea Polychaetea Hirudinea Polyplacophora Gastropoda Bivalvia Cephalopoda Organization for the lab exam!
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Student Group Work! Cell Requirements?
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Radius (r) 1 m 2 m 10 m 1,000 m Surface Area m 2 (A) 1.2 X 10 1 5.0 X 10 1 1.2 X 10 3 1.2 X 10 7 Volume m 3 (V) 4.2 X 10 0 3.4 X 10 1 4.2 X 10 3 4.2 X 10 9 A/V 3 1.5 0.29 2.8 X 10 -3 Time for Glucose diffusion* 1 ms 4 ms 9 ms 1 X 10 6 ms Increasing size of a cell
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Cells -> tissues -> organs -> organ systems
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Organ systems:
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Respiratory Circulatory Excretory Reproductive.
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