Animals

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Characteristics of animals

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Heterotrophs, multicellular, eukaryotes

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The opposite of anterior

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Posterior

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Posterior is the

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bottom

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Anterior is the

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Head

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Dorsal is the

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Back

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Ventral is the

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Front

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Skeltons on the outside of the body

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Exoskeletons

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Skeletons on the inside of the body

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Endoskeletons

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Vertebrates

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Have a backbone

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Invertebrates_______ ______ have a backbone

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do not

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Sponges use this process to gather food

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filter feeding

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A process where an organism can regrow a lost part is ____________

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Regeneration

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When organisms shed the hard outer coating to grow

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Molting

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Parthenogensis

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A process of reproduction when an unfertilzed egg makes an offspring

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Endotherms

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Produce their own body heat; regulate body temperature internally

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Ectoderms

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Use the environment to regulate body tmperature

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Symmetry where it can be divided into similar right and left sides

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Bilateral

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Symmetry where the organism is centered on a single axis

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Radial

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Symmetry where the organism is irregular

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Asymmetry

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Symmetry

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describes the arrangement of body structure

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Characteristics of Sponges

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Phylum Porifera, Pore bearers, mainly sessile; variety of colors & shapes; multicellular, heterotrophs

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Filter feeding

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a process where sponges feed on small particles of food by passing water through some part of it

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Reproduction of sponges

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can be internal or external fertilization

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Internal fertilization

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occurs inside the organism

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Fertilization that occurs outside the organism

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External fertilization

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Characteristics of Cnidarians

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Live mostly in marine boimes, heterotrophs, multicellular, have a unusual life cycle

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Life Cycle of Cnidarians

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Buds, polyps, medusas

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Reproduction of Cnidarians

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Sexual or asexual

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Asexual reproduction of Cnidarians

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Budding; can occur during the medusa or polyp stage

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Sexual reproduction of Cnidarians

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Occurs during medusa stage
Male releases sperm
Female release egg

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Examples of cnidarians

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hydra and jellyfish

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Examples of flatworms

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Planarians, fluke, leech, tapeworm

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Examples of segmented worms

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earthworms

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Examples of roundworms

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heartworms in dogs

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Many flatworms, and roundworms are ______

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parasites

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Characteristics of Roundworms

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Tapered at both ends; found in soil, freshwater, salt water, and in animals

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Characteristics of Mollusks

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Phylum Mollusca; Marine or freshwater or moist soils; some have shells;

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Examples of Mollusks

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Snails, Squid, Slugs, Clams, Oyster

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Mollusk reproduction

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Sexual, external fertilization and some internal fertilization

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Characteristics of segmented worms

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Phylum Annelida; have bilateral symmetry; tube within a tube; simple nervous system;

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Setae

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tiny bristles on segmented worms; helps to anchor and move their bodies

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Characteristics of Arthropods

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Are pollinators; body is segmented; jointed appendages; found almost everywhere; have exoskeletons

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Examples of arthropods

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spiders, bettles, bees, ants, butterflies

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Characteristics of Echinoderms

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move by suction cup tipped appendages; found in oceans; endoskeletons; radial symmetry;

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Examples of Echinoderms

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Sea stars; brittle stars; sand dollars; sea urchins;

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Extra credit card

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Send me a pic of a clam to [e-mail]