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To classify organisms, we use the five-kingdom system of classification. Obviously, the crayfish is not an amoeba-like organism or a single-cell organism. It is clearly not a plant, because it does not manufacture its own food, has a nerve cord and can move. Therefore it must be an animal. It is actually relatively complex as animals go. I know its classification to phylum level: Kingdom: Animalia - Animals.

Subkindgom: Metazoa - Animals with a digestive tract.

Phylum: Chordata - Animals with a neural tube. The crayfish, as a crustacean, is not a vertebrate, but it is still quite a complex animal.

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17y ago

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The lineage of crayfish as follows: Kingdom Animalia, Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, Order Decapoda. The living crayfish of the world are distributed into 3 different families, Astacidae, Parastacidae, and Cambaridae. Cambaridae contains by far the largest number of species, with at least 300 hundred.

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16y ago
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Crayfish belong to class Crustacea, which also includes lobsters, crabs, shrimp, waterfleas, sow bugs, barnacles, and many others.

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14y ago
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Class: Decopoda

Phylum: Arthropoda

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14y ago
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they belong to edits

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12y ago
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Q: What animal classification group is the crayfish in?
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