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Invertebrates

Nathan King

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Across
6.A pair of mouthparts used for biting or cutting in arthropods
7.Cylindrical in shape and sessile, cnidarian body form
9.A class of joint-legged invertebrate animals in the subphylum Chelicerata
10.The "stinging cell" of a cnidarian
13.Rare form of asexual reproduction, where growth and development of embryos occur without fertilization
14.Skin
16.Umbrella-shaped, cnidarian body form
17.A phylum containing sea stars, sea urchins, and sand dollars
25.The ability of an organism to regrow body parts
26.Crustacean shell
28.Openings on the thorax and abdomen of insects that allow the insect to breathe
32.Crustacean larvae form
33.A set of soft overlapping flaps
36.Marine animals that are cnidarians, typically live in colonies of polyps
37.Markings on an insect, usually wings, that have a similar appearance to the mammalian eye
38.Ten-footed crustacean
39.The main opening through which water is filtered in a cnidarian
Down
1.Arthropods that have two legs per segment
2.An organ that produces silk
3.A phylum containing planarians, tapeworms, and flukes
4.Organ that makes gametes in echinoderms
5.A type of exoskeleton supported by fluid pressure
7.Phylum containing sponges
8.Cavity in the digestive tract just past the mouth
11.A tough, translucent material found in arthropod exoskeletons
12.An organism with both male and female reproductive organs
15.Non-parasitic flatworm
18.The body is divided into repeated subunits called segments
19.The lower surface of an organism
20.The upper surface of an organism
21.Echinoderms from class Holothuroidea
22.Inability to move
23.The middle layer of tissue between the ectoderm and endoderm
24.The blood filled body cavity of many invertebrates
27.Head of a crustacean
29.A common human intestinal parasite
30.A form of asexual reproduction where a new organism forms from an outgrowth or bud from a different one
31.A variety of tough but flexible, non-mineral outer coverings of an organism
33.A mollusk that is held together by two hinges or strong muscles
34.One of the three main body parts of an insect
35.Invertebrate with a soft, unsegmented body, protected by a hard, outer shell

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