NEET · Biology · STD 11 - 4. Animal kingdom

The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as :

A Struthio
B Neophron
C Aptenodytes
D Psittacula

Verified Solution

Answer & Solution

Correct Answer

(C) Aptenodytes

Step-by-step Solution

Detailed explanation

(C) Aptenodytes
Aptenodytes is the scientific name for the penguin.
Penguins are flightless birds that have their forelimbs modified into paddle-like flippers, which are highly adapted for swimming.
Struthio (ostrich) is flightless but adapted for running.
Neophron (vulture) and Psittacula (parrot) are flying birds.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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