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Which is not a crustacean ?...

Which is not a crustacean ?

A

Waterflea

B

Palaeomon

C

Crab

D

Grasshopper.

Text Solution

AI Generated Solution

The correct Answer is:
To determine which organism is not a crustacean, we need to analyze the options provided: water flea, palamon, crab, and grasshopper. ### Step-by-Step Solution: 1. **Understand Crustaceans**: Crustaceans are a class within the phylum Arthropoda. They are primarily aquatic and are characterized by having one pair of modified appendages and two pairs of legs. 2. **Identify the Options**: - **Water Flea**: This is an aquatic organism and is indeed a crustacean. - **Palamon**: This is the scientific name for a type of shrimp, which is also a crustacean. - **Crab**: Crabs are well-known members of the crustacean class. - **Grasshopper**: This is an insect and belongs to the class Insecta, not the class Crustacea. 3. **Conclusion**: Among the options provided, the grasshopper is the only organism that is not a crustacean. ### Final Answer: **Grasshopper** is not a crustacean.
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