Among the following organisms, which one does not belong to the class of the other three?
Detailed Explanation:
Crab belongs to class Crustacea, while Mite, Scorpion, and Spider all belong to class Arachnida.
Both are arthropods, but Crustaceans typically have two pairs of antennae and gills, whereas Arachnids have no antennae and possess eight legs.
Question 20 of 22 Keystone and Flagship Species
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