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Invertebrate Animals - Coggle Diagram
Invertebrate Animals
Worms: The animal kingdom includes several phyla of worms, three of which are shown here: flatworms, annelids, and roundworms. pg 256
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Flatworms: A bilateral animal with a thin, flat body form, a gastrovascular cavity with a single opening, and no body cavity. Flatworms include planarians, flukes, and tapeworms. pg 256
Segmented Worms: They all have segmented bodies, a tough exoskeleton, and several jointed appendages that perform specific functions such as walking, feeding, or swimming. pg 260
Echinoderms: Member of a group of slow-moving or stationary marine animals characterized by a rough or spiny skin, a water vascular system, typically an endoskeleton, and radial symmetry in adults. Echinoderms include sea stars, sea urchins, and sand dollars. pg 262
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Regeneration: Sea stars and some other echinoderms can regenerate lost body parts, provided that a piece of the central body remains. pg 262
Body Symmetry: Sea stars and some other echinoderms can regenerate lost body parts, provided that a piece of the central body remains. pg 262
Mollusks: A soft-bodied animal characterized by a muscular foot, mantle, mantle cavity, and radula. pg 258
Body Features
Muscular Foot: The body of a mollusk usually has three main parts: a muscular foot, a visceral mass, and a fold of tissue called the mantle. pg 258
Visceral Mass: One of the three main parts of a mollusk containing most of the internal organs. pg 258
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Mantle: In mollusks, the outgrowth of the body surface that drapes over the animal. The mantle produces the shell and forms the mantle cavity. pg 258
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Classes
Gastropods: (snails and slugs), bivalves (clams, oysters, and scallops), and cephalopods (squids and octopuses). pg 258
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Bivalves: Member of a group of mollusks that includes clams, mussels, scallops, and oysters. pg 259
Arthropods: Arthropods are characterized by a chitinous exoskeleton, molting, jointed appendages, and a body formed of distinct groups of segments. pg 260
Classes: They all have segmented bodies, a tough exoskeleton, and several jointed appendages that perform specific functions such as walking, feeding, or swimming. pg 260
Insects: Insects outnumber all other animals combined, by far. pg 261
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Crustaceans: Member of a major arthropod group that includes lobsters, crayfish, crabs, shrimps, and barnacles. pg 261
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Arachnids: Member of a major arthropod group that includes spiders, scorpions, ticks, and mites. pg 260
Body Features: body segments, exoskeleton, joined appendages, abdomen, thorax, head, antenna, eye on stalks. pg 260
Jointed Appendages: several jointed appendages that perform specific functions such as walking, feeding, or swimming. pg 260
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Head, Thorax, & Abdomen: within the segments are specialized structures that perform specific functions. pg 260
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Cnidarians: An animal characterized by cnidocytes, radial symmetry, a gastrovascular cavity, and a polyp or medusa body form. Cnidarians include hydras, jellies, sea anemones, and corals.
Medusa vs Polyp: One of two types of cnidarian body forms; a floating, umbrella-like body form; also called a jelly. vs One of two types of cnidarian body forms; a stationary (sedentary), columnar, hydra-like body. pg 255
Cnidocytes (Stinging Cells): An animal characterized by cnidocytes, radial symmetry, a gastrovascular cavity, and a polyp or medusa body form. Cnidarians include hydras, jellies, sea anemones, and corals.
Sponges: An aquatic stationary animal characterized by a highly porous body, choanocytes, and no true tissues. pg 254