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Question

Select the correct alternatives.

_______ and _______ are examples of shelled fish which comes under fish production.


A

Prawns and Molluscs

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B

Mullets and Bhetki

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C

Catlas and Rohus

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D

Pearl spots and Mullets

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Solution

The correct option is A

Prawns and Molluscs


The correct option is A:

Explanation of the correct option :

  1. Shelled fish are those fish that have their outer covering made up of calcium carbonate.
  2. It can be seen in the phylum Mollusca which is used as their protection from foreign material.
  3. In both Prawns and Molluscs, shells are very prominent and both are used for fish production.

Explanation of the incorrect option:

Option B:

  1. Mullets and Bhetki are the bony fishes.
  2. Instead of shells, scales are found in their body.

Option C:

  1. Catlas and Rohus are freshwater fishes.
  2. They also have scales present all over their body.

Option D:

  1. Pearl spots - belong to the phylum Mollusca and have shells as their outer covering.
  2. Mullets - are marine fish and scales are present.

Final answer: Prawns and Molluscs are examples of shelled fish that come under fish production.


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