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Animals 2

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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Question
Answer
show gills  
🗑
an animal whose body temperature changes depending on the environment   show
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the three major groups of fishes are distinguished from one another by the types of ______ they have   show
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show oxygen  
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amphibian means   show
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most snakes have only one   show
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which of the following groups descended from reptiles   show
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unlike most fishes, sharks cannot   show
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show vertebrae  
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show cartilage  
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show swimbladder  
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show turtles  
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show external  
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a paleontologist is a scientist who studies ____   show
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during metamorphosis, most salamander larvae lose their _____   show
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an animal in whose bodies are produce internal heat   show
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_______ and _____ lay their eggs externally in water   show
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all kinds of birds and all kinds of mammals   show
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show air pressure  
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show keep the eggs warm  
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show lay eggs  
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all mammals feed their young with   show
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both a mammal's fur and a bird's feathers function to help the animal   show
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_____ feathers trap air next to a bird's body   show
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birds can store food in an organ called a _____ before the food goes to the stomach   show
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all mammals are   show
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_____ feathers help a bird keep its balance during flight   show
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the angle and shape of a bird's _____ provide lift   show
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show endothermic, vertebrate, feathers, lay eggs  
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what are three adaptations that enable birds to fly?   show
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show mollusks  
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an organ in a mollusk that can crawl, dig, or catch prey   show
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show gills  
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a system in which the blood is not always inside blood vessels and the heart pumps blood into a short vessel that opens into the body spaces containing the internal organs   show
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show bilateral  
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show gastropods, bivalves, cephalopods  
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show gastropods  
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animals that eat only plants   show
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animals that eat only other animals   show
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mollusks that have two shells held together by hinges and strong muscles that include oysters, clams, scallops, and mussels   show
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show omnivores  
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show cephalopod  
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show closed  
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cephalopods swim by ____ _____   show
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show mantle  
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show crustaceans, arachnids, centipedes, millipedes, insects  
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invertebrates that have an external skeleton, a segmented bdoy, and jointed attachemnts called appendages   show
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arthros means   show
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show leg  
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show molting  
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show antenna  
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show segmented  
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an arthropod that has two or three body sections, five or more pairs of legs, and two pairs of antennae   show
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_____ includes crayfish and lobster   show
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show metamorphosis  
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show centipedes, millipedes  
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show thousand feet  
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show hundred feet  
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show insects  
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show thorax  
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show complete metamorphosis  
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wings, legs, and antennae form inside a protective covering   show
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a system has no distinct larval stage   show
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an egg hatches into a stage which usually looks like the adult insect without wings   show
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at some point _______ will have a notochord   show
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a nerve cord that runs down their back, and slits their throat area   show
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show notochord  
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show vertebrate  
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many similar bones that the backbone is formed by   show
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show close, stable  
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show fish  
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show ectotherms  
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show external  
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show jawless, cartilaginous, bony  
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a vertebrate that is ectothermic and spends its early life in water   show
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amphibian means   show
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after beginning their lives in ____, most amphibians spend their adulthood on ____, returning to ____ to reproduce   show
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the larva of a frog or a toad   show
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show lungs  
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show atria  
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show habitat  
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show reptiles  
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an ectothermic vertebrate that has lungs and scaly skin   show
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show kidneys  
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show urine  
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show amniotic egg  
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show internal  
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show overlapping  
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show turtle  
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unlike most other reptiles, crocodiles and alligators ____ for their eggs and newly hatched young   show
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show fossil  
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the scientists who study extinct organisms, esamine fossil structure and make comparisons to present-day organisms   show
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show chordates  
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show has fins  
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a tadpole is the larva of a   show
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show lays eggs  
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show sedimentary rock  
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show swim bladder  
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show fishes  
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show amniotic egg  
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show paleontologists  
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how do fishes reproduce   show
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