Crayfish, The A complete classification, habitat, predator and prey, body plan, nervous system, circulatory system, digestive system, and respiratory system.

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Classification The crayfish falls within the kingdom - anamalia, phylum - Arthropoda, Class - Crustacea, Order -Decapoda , and family - Cambaridae. Habitat Crayfish like to be where it's dark and cool, and during much of the daylight they will be found by them selves, under a rock or vegetation, waiting for dark, when they come out to forage for food. This is highly variable, ranging from deep holes to sluggish streams. A suitable habitat is medium-sized streams containing riffles and rocky pools. They burrow very aggressively, burrowing to find warmth, moisture, and food or just to pass the time. In Arizona we are trying to rid of crayfish because they aren't native here and are taking over fish population. Prey & Predator Crayfish ...

... function in escape responses. The supraesophageal and subesophageal ganglia control the head appendages in response to sensory input received from receptors. Receptors are organs that receive senses and pass these to the brain. Examples are the eyes, antennas, and ears. The tactile recoptors are widley distributed on appendages and joint as they function as equilibrium, balance, and position senses. Circulatory System There is a dorsal tubular heart and several arteries. The crayfish has an open circulatory system in which the blood flows from arteries into sinuses, or spaces, in tissues. The blood flows over the gills before returning to the heart. Digestive System The maxillae pass the pieces of food into the mouth. The food travels down the

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