Crustaceans are typically described as having how many antennae?

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Multiple Choice

Crustaceans are typically described as having how many antennae?

Crustaceans typically have two antennae on the head. These paired sensory appendages help detect chemicals, touch, and water movements, guiding feeding and navigation. There is also a second, smaller pair called antennules in many crustaceans, but when people refer to the main “antennae,” they mean the two larger ones. That’s why two is the correct count. One, three, or four would not fit the common head appendage arrangement seen in crustaceans.

Crustaceans typically have two antennae on the head. These paired sensory appendages help detect chemicals, touch, and water movements, guiding feeding and navigation. There is also a second, smaller pair called antennules in many crustaceans, but when people refer to the main “antennae,” they mean the two larger ones. That’s why two is the correct count. One, three, or four would not fit the common head appendage arrangement seen in crustaceans.

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