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The top documents tagged [external shell]
Zooplankton . Planktos: “drifts” in greek Their distribution depends on currents and gyres Certain zooplankton can swim
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Animal Classification THE ANIMAL KINGDOM BASIC CHARACTERISTICS OF ANIMALS: 1. 2. 3. NINE ANIMAL PHYLA INVERTEBRATES: VERTEBRATES (CORDATES): (1 phylum)
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The body plan (symmetry) of a sponge. Porifera 100
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Mollusks This section describes the defining features of mollusks. It also describes the basic mollusk body plan and the characteristics of the three main
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1 Phylum Mollusca: stuff to know Important morphologic features (hard parts only) Classification: –Subphyla; classes; subclasses within Class Cephalopoda
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Major Groups of Mollusks The mollusks represent a diverse group of marine, freshwater, and terrestrial invertebrates, including such varied forms as snails,
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Nekton --- those organisms that have developed powers of locomotion so that they are not at the mercy of prevailing ocean currents or wind-induced water
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The Placenta and the Embryo Per Brodal Institutt for medisinske basalfag Universitetet i Oslo 9th Semester 2008
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STOP 6: PHYLUM MOLLUSCA. Characteristics ◦ Soft-bodied invertebrate covered with protective mantle that may or may not form a hard, calcium carbonate
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IB-202-5 3-17-06. Cephalopods Class Cephalopoda includes squids and octopuses –Carnivores with beak-like jaws surrounded by tentacles. Foot modified to
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INVERTEBRATES Mollusca, Annelida, Arthropoda, Echinodermata Animals that lack vertebrae (classed by a characteristic they don’t have.) 97% of all species
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Invertebrates Do not have a backbone or vertebral column Range in size from microscopic dust mites to giant squids Include groups of sea stars, worms,
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