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5 Cards in this Set
- Front
- Back
Closed Circulatory System
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a circulatory system in which the heart ciculates blood through a network of vessels that form a closed loop; the blood does not leave the blood vessels, and materials diffuse across the walls of the vessels.
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open circulatory system
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a circulatory system in which the circulatory fluid is not contained entirely within vessels; a heart pumps fluid through vessels that empty into spaces called sinuses
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3 main body parts of an arthropod
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head, thorax, abdomen
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relationship between parasite & and host
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parasite lives off host
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4 characteristics of arthopods
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A segmented body with specialized parts, joined limbs, an exoskeleton, and a well developed nervous system
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