Invertebrate Study
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Arachnid | 4 pairs of jointed legs
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| Species | means kind, genus ____
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| LInnaeus | Father of Classification
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| tube feet | used for movement in echinoderms
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| Porifera | pore bearing, sponges
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| Asymmetry | without symmetry
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| Crustacean | 5 pairs of jointed legs
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| Arthropods | means jointed legs
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| Echinoderm | having spiny skin
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| Insect | having 3 body parts, head abdomen and thorax
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| Genus | first part of the scientific name
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| Worms | flat (planeria) , round (nematode) , and segmented (annelids)
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| sessile | animals that don't move around
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| book lungs | arachnids use for breathing
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| earthworms | eat dirt
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| annelid | means having rings, earthworm is the example
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| molt | insect grows loose their exoskeleton
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| crop | stored crushed food in earthworm
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| gizzard | grinds food for earthworms
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| spicules | skeletal-like system in spoges
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| setae | used to hold onto the soil for earthworms
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| Cnidaria | stinging celled organisms, jellyfish, coral
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| bilateral symmetry | body parts cut in 1/2 mirror image.
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| Mollusks | gastropods, bivalves, cephalpods
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| invertebrate | animals lacking backbone
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| vertebrate | animals with a backbone
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| free-living | animals that can move around
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| radula | mollusk tongue used for scraping food
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| trachea | opening in insects used to breath
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| open system | blood vessels to travel around the body
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