Terms Part I sp 08

Terms Part I sp 08 - Terms Part I(Quizzes will cover...

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Terms Part I (Quizzes will cover material from last week’s labs only unless otherwise stated. Refer to Lab Schedule for quiz dates. Scroll down for the more recent labs and terms.) Lab 1: Microscopy Identify microscope parts and function pp. 2-4 Microscope usage: -Carry with two hands: one on handle and other under base -Turning on and off scope: light intensity to 1 & scanning objective in place -Never use course adjustment on high power or oil immersion Parfocal: image is approximately in focus when you change objective lenses Lenses: Ocular Lens: 10X Objective lenses: Scanning: 4X Low power: 10X High power: 40X Oil immersion: 100X Total magnification calculation: (ocular power) x (objective lens power) Field of View Diameter Calculation: (low magnification /high magnification) = (high diameter/low diameter) List of slide found on lid of slide box. Scientific Drawings: include-labels, scale, title, magnification Animal Diversity For all phyla, be able to : -Name phylum and/or class (when appropriate) from picture of representative animal -Name key characteristics of each phylum -Name/recognize structures/cells, etc. listed below and name function Lab 17: Animal Diversity Part I 4 Major Evolutionary Splits: 1. Tissue (Parazoa-Eumetazoa (diploblastic vs. triploblastic) split) 2. Symmetry (Radiata-Bilateria split) 3. Body Cavities (Acoelomate-Psuedocoelomate-Coelomate split) 4. Development (Protostome-Deuterostome split) Phylum Porifera -sponges Characteristics: parazoa (no true tissue), asymmetrical, sessile (attached to substrate) Anatomy: be able to recognize and know function of spongocoel, ostia, osculum, choanocyte, spicules Phylum Cnidaria Characteristics: eumetazoa (diploblastic: 2 tissue layers), radial symmetry, gastrovascular cavity (blind gut; 1 opening); nematocysts
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-be able to recognize medusa vs. polyp -nematocysts: specialized stinging cells for feeding and defense; triggered by touch or acetic acid (artificial induction) Class Hydrozoa : hydra, Obelia , Portuguses-man-of-war -usu. both polyp and medusa stage present depending on stage of life cycle -often colonial -be able to recognize gastrozooid (feeding polyp) vs. gonozooid (asexual repro polyp) Class Scyphozoa : true jellies (aka jellyfish) -medusa stage dominant Class Anthozoa : sea anemones and corals -polyps only! -zooxanthellae algae provide colors to coral
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Terms Part I sp 08 - Terms Part I(Quizzes will cover...

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