To which class does a crab belong? (MCAER 2012)

✔Explanation: Crabs are characterized by their hard exoskeleton, jointed appendages, and primarily aquatic habitat. These features place them squarely within the class Crustacea, which also includes lobsters, shrimp, and barnacles.

🔑 Key Points:
-Crabs belong to the phylum arthropod.
-An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and jointed appendages.
-Arthropods form the phylum Arthropoda, which includes insects, arachnids, myriapods, and crustaceans.