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Bio chap 28/29

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
An octopus is a   cephalopod  
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What are the three parts of a mollusk body plan?   Foot, mantle, visceral mass  
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A trochophore   is the larval form of a mollusk.  
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Snail and slugs are   gastropods.  
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Clams and oysters are   bivalves.  
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What organ do mollusks use for gas exchange?   Gill  
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What type of circulatory system does a mollusk have?   An open circulatory system  
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What do we call the tooth-like tongue of a mollusk?   Radula  
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What type of symmetry do most mollusks have?   Radial  
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What is the central section that holds a mollusks organs called?   Visceral mass  
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What is the visceral mass of a mollusk covered by?   The mantle  
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Which mollusk has the largest brian?   Cephalopods  
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What are the 3 major classes of mollusks?   Gastropods, cephalopods, bivalves  
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What are the dividing walls between each segment in an annelid called?   Septa  
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What are the bristles on each segment of an annelid called?   Setae  
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What is the primitive brain in an annelid called?   Cerebral ganglia  
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What are the common names for the 3 groups of annelids?   Earthworms, leeches, marine worms  
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What type of circulatory system do annelids have?   Closed circulatory system  
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What is the common name for Polychaeta?   Marine worms  
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What is the common name for Oligochaeta?   Earthworms  
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What is the common name for Hirudina?   Leeches  
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Which type of annelid has suckers at both ends?   Leeches  
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Name 4 parts of the digestive system of an earthworm.   Mouth, pharynx, crop, gizzard, intestines  
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What is the midbody region of an arthropod called?   Thorax  
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What are the openings in an arthropod that allow air to enter their body?   Spiracles  
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Malpighian tubes are part of which system in arthropods?   Excretory system  
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What is the system of air tubes in an arthropod called?   Trachea  
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Name 3 characteristics of arthropods.   Jointed appendages, segmented body, hard external skeleton, open circulatory system  
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Name the 3 body regions of an arthropod.   Head thorax abdomen  
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What are 2 functions of an arthropod’s exoskeleton?   Protection from predators, prevents water loss  
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What are the openings of the respiratory system of an arthropod called?   spiracles  
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What are the breathing tubes of an arthropod called?   Trachea  
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What system do the Malpighian tubules of an arthropod belong to?   Excretory system (they filter out wastes)  
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Describe the eyes of an arthropod.   Compound- each eye is composed of hundreds of smaller eyes  
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Appendages found on arachnids that are used to attack prey.   Chelicera  
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Second pair of appendages (from the anterior end) found on an arachnida.   Pedipalp  
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Silk-producing organ located on the posterior end of an arachnid.   Spinnerette  
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What do arachnids do to their prey before they eat it?   They inject a poison that liquefies the prey  
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Name three examples of arachnids.   Spiders, ticks, scorpions, horseshoe crab  
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Name 3 characteristics of crustaceans.   Mandible for eating, gills for breathing, carapace to protect cephalothorax  
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Name 3 examples of crusteceans.   Crayfish, lobsters, shrimp, crabs  
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Name 3 characteristics of insects.   Wings for flying, specialized mouthparts, undergo metamorphosis, developed social systems  
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Name 3 characteristics of echinoderms.   5 part radial symmetry, water vascular system, skin gills, internal skeleton  
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What are the tiny plates of calcium carbonate that form the skeleton of an echinoderm called?   Ossicles  
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Name 3 examples of echinoderms.   Starfish, sand dollar, sea cucumber, sea urchin  
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