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Zoology

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
tagmatization   specialization of regions of the body for specific functions, as seen in arthropods  
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ecdysis   what is the shedding process where the arthropod exoskeleton must be shed to allow growth?  
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metmorphosis   having this between larval and adult stages of arthropods reduces competition for resources  
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biramous   appendages of trilobites that were divided into two lobes  
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meristomata   class that horseshoe crabs belong to  
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prosoma   cephalothorax of chelicerates  
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digestive organs   what does the chelicerate opisthosoma contain?  
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arachnida   spiders, ticks, and scorpions belong to the arthropod class  
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arachnids   most zoologists believe that these were the first arthropods to invade land  
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book lungs   many arachnids utilize these for respiration, which are believed to be modifications of book gills  
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webs   many spiders produce these that are used to trap small arthropods on which they feed  
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acarina   the chigger or "red bug" is a member of the arachnid order  
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ticks   carry and transmit the bacteria that causes Lyme Disease  
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aquatic   the majority of crustaceans are this  
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carapace   the portion of the crustacean exoskeleton that covers the cephalothorax  
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isopoda   terrestrial crustaceans are quite rare, but terrestrial pill bugs belong to which order  
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sessile   adult barnacles are unusual in lifestyle because they are this  
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decapoda   crayfish, lobsters, and shrimps belong to which order  
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flight   insect dominance in terrestrial environments is due in part to the evolution of this  
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diplopoda   millipedes belong to which arthropod class  
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scavengers and detritivores   millipedes may be categorized as this  
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myriapoda   centipedes belong to which subphylum  
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head, thorax, and abdomen   what are the three tagmata of insects  
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thorax   the legs and wings of insects are attached to what  
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spiracles   the external openings of the respiratory system of insects are what  
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uric acid   the primary nitrogenous waste excreted by insects  
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malpighian tubules   the excretory organs of insects  
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ametabolous   insects in which the larvae appear to be exact miniatures of the adults exhibit what kind of metamorphosis  
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nymphs   immature stages associated with hemimetabolous metamorphosis  
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butterflies   which insect is holometabolous  
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larvae   immature insects undergoing holometabolous metamorphosis are called this because they are bery different from the adult morphology  
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isoptera   entirely social order of insects  
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caste   each kind of individual in an insect colony  
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queens   reproductive females in a social insect colony  
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hymenoptera   bees, ants, and wasps belong to which insect order  
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lepidoptera   butterflies and moths belong to which insect order  
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odonata   dragonflies and damselflies belong to which insect order  
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trilobitomorpha   extinct subphylum  
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chelicerata   subphylum that is made up of meristomata, arachnida, pycnogonida  
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aranea   spiders  
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acaria   mites, ticks  
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scorpionida   scorpions  
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pycnogonida   sea spiders  
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crustacea   subphylum that is made up of malacostraca and maxillopoda  
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malacostraca   lobster, crab, shrimp  
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maxillopoda   barnacles, pill bugs  
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hexapoda   subphylum that is made up of insecta  
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myriapoda   subphylum that is made up of deplopoda and chelopada  
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exoskeleton   provides support and protection, prevention of dehydration, sites for muscle attachment  
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chitinous exoskeleton, paired-jointed appendages, growth with ecdysis, pen circulatory system, complete digestive tract   arthropod characteristics  
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metamorphosis   reduces competition between stages for food and living space  
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chilopoda   class that centipedes belong to  
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open   what kind of circulatory system to insects have?  
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arthropods   segmented, bilateral body; jointed appendages; exoskeleton; open circulatory system; ventral nerve cord; compound eyes  
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versatile exoskeleton; segmentation; oxygen piped directly to cells (terrestrial); highly developed sensory organs; complex behavior; metamorphosis   arthropods' reasons for success  
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trulobita   extinct; one pair of antennae; biramous appendages  
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chelicerata   no antenna; no mandibles; 4 pair of walking legs; 1 pair of pedipalps  
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merostomata   limulus; carapace; telson  
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arachnida   4 pair of legs; some have 2 body segments; most are predators, inject enzymes into prey, suck fluid into pharynx  
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araneae   fangs with poison glands; silk glands  
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acari   body segments fused  
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crustacea   two pair of antennae; biramous appendages  
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uniramia   one pair of antennae; uniramous appendages  
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chilopoda   one pair of legs per body segment; poison fang; flattened body; carnivores  
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diplopoda   two pair of appendages per body segment; cylindrical body; herbivores  
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