Lewis Invertebrates
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| animal that eats only plants or parts of plants; has large molars for grinding plant parts | herbivore
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| animal that eats only other animals or the remains of other animals; has large, sharp canine teeth and strong jaw muscles for tearing flesh | carnivore
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| animal that eats both plants and animals; has a variety of teeth for eating both plant and animal parts | omnivore
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| animal with a backbone | vertebrate
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| animal lacking a backbone | invertebrate
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| any structural characteristic or behavioral change that helps an organism survive in its particular environment | adaptation
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| animals that have body parts arranged in a circle around a center point | radial symmetry
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| animals with bodies that can be divided into right and left halves that are nearly mirror images of each other | bilateral symmetry
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| organisms that have no definite shape | asymmetry
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| organisms that cannot make their own food | heterotrophs
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| organisms that are able to produce their own food | autotrophs
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| organisms that remain attached to one place during their lifetime | sessile
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| sharp, pointed structureson the body of a sponge that are used to protect the sponge | spicules
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| animal that produces both sperm cells and egg cells in the same body | hermaphrodite
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| thin layer of tissue that covers the body organ's of a mullusk; secretes teh shell or protects the body of mollusks without shells | mantle
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| organs in which carbon dioxide is exchanged for oxygen in the water | gills
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| blood circulation system in which blood moves through vessels and into open spaces around the body organs | open circulatory system
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| tongue-like organ with rows of teeth | radula
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| blood circulation system in which blood moves through the body in a series of closed vessels | closed circulatory system
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| bristlelike structures used for movement and to hold onto the soil | setae
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| sac used for storing digested food | crop
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| muscular structure used for grinding soil and bits or organic matter | gizzard
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| jointed structures; includes legs, antennae, claws, and pincers | appendages
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| hard, outer covering that protects and supports the body of an arthropod | exoskeleton
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| process in which the exoskeleton is shed and replaced with a new one | molting
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| openings on the abdomen and thorax through which air enters and waste gases exit the insect's body | spiracles
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| process in which many insect species change their body form to become adults | metamorphosis
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| hollow, thin-walled tubes ending in suction cups that are used for movement in echinoderms | tube feet
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| network of water-filled canals used for movement, capturing food, releasing wastes, and exchanging gases in an echinoderm | water vascular system
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Created by:
lewisch
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