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6 Cards in this Set
- Front
- Back
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Closed circulatory system
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blood pumped by one or more hearts.
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Open circulatory system
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extracellular fluid and circulatory system combined
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three main body parts of an arthropod
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head, thorax and abdomen
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relationship between parasite and hosts
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a relationship called parisitsm
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four characteristics of an arthropod
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They are having jointed limbs, a segmented body, an exoskeleton, and a well-developed nervous system.
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three funcitons of neurons
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1.motor neuron: neurons that relay signals from the central nervous system to the other parts of the body.
2.sensory neuron: neurons that transmit information to the central nervous system from the senses of sight, hearing, taste, touch, and smell, as well as those that transmit pain signals. 3.inter neurons: relay signals between neurons or groups of neurons, are responsible for the processing of information by the brain, like the logic circuits of a computer. also serve to relay signals from place to place within the central nervous system. |
