Review main invertebrate orders and characteristics practice for quiz
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each of the black spaces below before clicking
on it to display the answer.
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| Characteristics of an animal | consumers, most have true tissues, interact with the environment and other animals,
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| Invertebrate | animals without bone tissue
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| Characteristics of Sponges | sessile filter feeders with specialized cells
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| Spicules | needlelike spines which make the sponge stiff, and used for protection
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| Asexual reproduction | reproduction without exchanging genetic material
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| Sexual reproduction | reproduction which involves the exchange of genetic material
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| Larva | Immature form of an organism that is different from its parent
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| Bilateral symmetry | only one line of symmetry, left and right
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| Radial symmetry | having more than one line of symmetry
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| Characteristics of Cnidarians | radial symmetry, tentacles, a single opening where food enters and waste leaves.
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| nematocyst | stinging cell on a tentacle
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| Classes of cnidarians | sea anenome, coral, jellyfish
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| Worms | tube-shaped bodies with bilateral symmetry
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| Phyla of Worms | segmentedworms, flatworms and round worms
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| Annelids | segmented worms with organized body systems
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| Characteristics of Flatworms and Round worms | simple body systems that move with cilia, may be parasitic
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| Characteristics of Mollusks | soft bodied, with a foot and a mantle
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| Classes of Mollusks | bivalves, gastropods, cephalopods
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| Characteristics of Echinoderms | live in the oceans, adults have radial symmetry, feed on the sea floor
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| Examples of Echinoderms | sea stars, sea urchins, sea dollars
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| Characteristics of Arthropods | segmented body parts and an exoskeleton
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| Classes of Arthropods | arachnids, crustaceans, insects, millipedes and centipedes
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| Characteristics of Insects | 3 body segments, 3 pairs of legs, live mostly on land
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| Characteristics of Crustaceans | varied number of body segments and pairs of legs. 2 pairs of antennae, live mostly in water
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| Characteristics of Arachnids | 4 pairs of legs, 2 body segments, most on land
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| Molting | shedding of the exoskeleton as an arthropod grows
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| Examples of Crustaceans | crabs, lobsters, barnacles and sow bugs
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| Examples of Arachnids | spiders, ticks, mites, and scorpions
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| Examples of Insects | bees, ants, butterflies, grasshoppers
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| Metamorphosis | process during the life cycle where the appearance and body systems undergo a change
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| Characteristics of Millipedes and centipedes | long segmented bodies with many legs
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| Complete metamorphosis | Life cycle that includes a larval, pupal, and adult stage.
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| Incomplete metamorphosis | Life cycle where young grows gradually, and forms an reproductive adult life form at the end.
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| Gills | Organs with high surface area, used to exchange gases in water animals.
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| Water Vascular System | Hydraulic system used by echinoderms for movement, digestion and circulation.
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| Tube feet | fluid filled muscular tubes used by echinoderms for movement and grasping
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| Three body parts of insects | head, thorax and abdomen
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| Examples of bivalves | oysters, clams and mussels
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| Examples of gastropods | snails and slugs
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| Examples of cephalopods | squid, cuttlefish, octopus
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| Medusa | life form of cnidarian. Gelatinous umbrella shape body with trailing tentacles
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| Polyp | life form of cnidarian. cylindrical, sessile body with tentacles above for feeding
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Created by:
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