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32 Cards in this Set
- Front
- Back
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vertebrate
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an animal with a backbone
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invertebrate
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an animal that does not have abackbone |
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exoskeleton
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thick, hard outer covering that protect and support animals' bodies
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appendage
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is a structure, such as a leg or an arm, that extends from the central part of thebody
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chordate
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an animal that has a notochord, a nerve cord, a tail, and structures calledpharyngeal pouches. These characteristics are present only during embryonicdevelopment
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notochord
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a flexible, rod-shaped structure that supports the body of a developing chordate
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diffusion
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the movement of substances forman area of higher concentration to an area of lower concentration |
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gills
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organs that enable oxygen to diffuse into an animals' body and carbon dioxide todiffuse out
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open circulatory system
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a system that transports blood and other fluids into open spaces that surroundorgans in the body
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closed circulatory system
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a system that transports materials through blood using vessels
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crop
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a specialized structure in thedigestive system where ingested material is stored
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gizzard
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a muscular pouch similar to a stomach that is used to grind food
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absorption
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the process in which nutrients from digested food are taken into the body
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behavior
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the way an organism reacts to other organisms or to its environment
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homeostasis
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organisms' bodies work tomaintain a steady internal condition when outside conditions change |
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stimulus
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a change in an organism's environment that causes a response
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innate behavior
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a behavior that is inheritedrather than learned |
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instinct
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a complex pattern of innate behaviors like finding food, running from danger, orgrooming
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migration
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instinctive behavior, seasonal movement of animals from one place to another
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hibernation
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a response in which an animal's body temperature, activity, heart rate, andbreathing rate decrease during periods of cold weather
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imprinting
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occurs when an animal forms an attachment to an organism or place within a specifictime period after birth or hatching
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trial and error
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learned behavior that resultsfrom an animal trying to perform a task until it finds a method that works |
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conditioning
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behavior is modified so that a response to one stimulus becomes associated with adifferent stimulus
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cognitive behavior
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thinking, reasoning, solvingproblems |
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sexual reproduction
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genetic material from twodifferent cells, a sperm and an egg, combine, producing an offspring |
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fertilization
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the joining of an egg cell with asperm cell |
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zygote
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the new fertilized egg
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incomplete metamorphosis
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egg, nymph, adult
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complete metamorphosis
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egg, larva, pupa, adult
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nymph
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look like small adults, they go through the molting process several times as theygrow
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larva
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they do not look like adult, theydo go through a molting process, most have a worm-like shape |
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pupa
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chrysalis stage, they make cocoons around themselves and go through completereorganization
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