EXTERNAL ANATOMY OF GNATHOSTOMES A. CLASS CHONDRICHTHYES: Scoliodon palasorrah (DOGFISH) -class of cartilaginous or elasmobranch -cartilaginous skeleton -exposed gill slits 2 common species for lab dissection: * Squalus acanthias –Atlantic spiny dog * Squalus suckleyi – Pacific spiny dog PARTS: 1. Body and skin * Body‚ SPINDLE SHAPE‚ advantageous for free- swimming animals * Body‚ pointed at each other a. TRUNK AND TAIL – provide fins for locomotion b
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Scientific Article Worksheet Title: Spiny Mice Modulate Eumelanin to Pheomelanin Ratio to Achieve Cryptic Coloration in ‘‘Evolution Canyon‚’’ Israel Authors: Natarajan Singaravelan‚ Tomas Pavlicek‚ Alex Beharav‚ Kazumasa Wakamatsu‚ Shosuke Ito‚ Eviatar Nevo Journal: PLoS one Volume‚ year‚ pages: 5‚ 2010‚ e8708 Scientific Article Overview Download this document and type your answers after each question. For each question provide a brief but complete answer to the question (you
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occurred. Agreement with his statements were constantly occurring while reading. Every point or example that he provided was backed up with evidence. Something that stood out to this reader was his example of the dogfish. This example talked about how there is a relationship that is between a dogfish and Shakespeare sonnet. A student that is desired to have either of these will have difficulty retrieving the creature itself from an educational package. This stood out because one may have never thought of
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Theodore Roethke’s poem “Elegy for Jane” shows the speakers affliction towards the death of his former student Jane. Roethke uses personification‚ imagery and metaphors as well as other devices to show the love and sorrow the speaker feels for Jane. The personification used by the speaker‚ when he says “leaves‚ their whispers turned to kissing” and “mold sang in the beached valley under the rose” is a representation of Jane’s presence‚ for bad and good her presence delighted them. The speaker uses
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Chordates and Vertebrates Lab Introduction/Background: In this lab students are learning all about chordates and vertebrates and will be viewing examples of them as well. The examples to be viewed in the lab are Tunicates‚ Lancelets‚ Lampreys‚ Rays‚ a Dogfish shark‚ a Perch‚ Catfish‚ Eels‚ Toads‚ Frogs‚ Lizards‚ Snakes‚ Roadrunner (foot)‚ Barn owl (wing)‚ Cotton tail rabbit ‚ and an Opossum. The different types of chordates/vertebrates discussed in this lab are the urochordata‚ cephalochordate‚ craniates
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The direct and indirect pathways are circuits heavily involved in the regulation of movement. The direct pathway is thought to decrease inhibitory basal ganglia output (coming from the GPi/SNpr nuclei)‚ whereas the indirect pathway increases inhibitory basal ganglia output. Therefore one would expect the direct pathway to increase motor activity and movement and the indirect pathway to inhibit it. So‚ when the direct pathway is activated‚ cells in the striatum make inhibitory connections with cells
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Andy Ton Ms. Morrissey AP Biology 9 January 2012 Fish Classification Lab |Fish # |Key # |Fish Name | |1 |1b>12b->13b->16a |Atlantic Salmon | |2 |1b->12b->13a->14b |Bullhead Catfish | |3 |1a->2b->6b->8b->10b |Blue Gill | |4 |1a->2a->3b->5b
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A Short Research Paper on The Hedgehog A hedgehog is any of the spiny mammals of the subfamily Erinaceinae‚ which is in order Erinaceomorpha. There are seventeen species of hedgehog in fivegenera‚ found through parts of Europe‚ Asia‚ Africa and New Zealand (by introduction). There are no hedgehogs native to Australia‚ and no living species native to the Americas. Hedgehogs share distant ancestry with shrews (family Soricidae)‚ with gymnures possibly being the intermediate link‚ and have changed
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Muizenberg Beach‚ located about 25 kilometers south of Cape Town‚ South Africa‚ is an expansive‚ white beach with bright blue water and mountains in the background. The shore is gently sloping‚ with flat‚ hard sand and moderate waves. Muizenberg Beach is one of the most breathtaking places in all of South Africa. However‚ here‚ paradise is not always guaranteed and can disappear in a moment. Recently‚ a young lifeguard was violently attacked a great white shark. Achmat Hassiem‚ a 24 year-old
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Introduction: Plants have adaptations to help them survive in harsh environments; Some live in a forests where plants have to find a way to get the sunlight they require‚ some live in an aquatic environments where there is an abundance of water‚ and some live in desert environments where it is dry and very hot. These plants have different adaptations such as leaf size‚ leaf surface‚ stem size‚ and their stress level. In this lab‚ we will be discussing plants from 3 different regions; forest‚ aquatic
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