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30 Cards in this Set
- Front
- Back
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arthropods have what?
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1. segmented body
2. exoskeleton 3. jointed appendages |
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tough external covering
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exoskeleton
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exoskeleton is made out of this?
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chitin
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structures such as legs and antennae that extend from the body wall
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Appendages
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the evolution of arthropods, by natural selection and other processes, has led to great/fewer? body segments and highly specialized appendages for feeding, movement, and other function
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fewer
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most terrestrial anthropods breathe through a network of branching called what that also extends throughout the body. grasshoppers use these to get there oxygen
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tracheal tubes
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organs that have layers for respiratiory tissue stacked like the pages of a book that spiders use to breathe
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book lungs
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arthropods have an open/close circulatory system
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open
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saclike organs that extract wasters from the blood and then add them to forces or digestive wastes that move though the gut
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Malpighian tubules
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a process that arthropods go through when the outgrowe there exoskeleton
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molting
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arthropods are classified base on what?
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number of body segments, and number of appendages
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crustaceans typically have what?
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two pain of antennae, tow or three body sections, and chewing mouth parts called mandibles
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formed by fusion of the head with the thorax
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cephalothorax
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lies just behind the hed and houses most of the internal organs
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thorax
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posterior part of the body
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abdomen
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part of the exoskeleton that covers the cephalothorax
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carapace
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a mouthpart adapted for biting and grinding food
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mandible
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first pair of legs are called what
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chelipeds
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appendages used for swimming
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swimmerets
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have mouthparts called chelicerae and two body sections, and nearly all have four pairs of wlaking legs
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chelicerates
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consider fangs?
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chelicerae
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top to legs that are use for gripping
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pedipalps
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body parts that use to wrap up eggs or pray
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spinnerets
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uniramians have what?
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Jaws, one pair of antennae, and unbranched appendages
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insects have what
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Head,thorax,abdomenn and three pair of legs
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how are echinoderms characterized
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spiny skin, an internal skeleton, a water vascular system, and suction cuplike structues called tube feet, five part radial syemestry at adult stage
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water vascular system do what?
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filled with fluid, carries out many essential body functions in echinodorms, including respiration, circulation, and movement
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opens to the outside through a sievelike structure is called?
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madreporite
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structure that that is a foot that has alot of suckers starfish use
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tube foot
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calsses of echinoderms
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sea urchines, sand dollars, brittle stars sea cucumbere,sea stars
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