Question

What is the locomotory organ in fish and bird respectively?

• A. wings-fins
• B. fins-wings
• C. wings-legs
• D. Legs-fins

Answer 1

The correct option is B

fins-wings

The correct option is B.

Explanation of correct option:

1. The locomotory organs of fish are fins, and birds are wings.
2. The fins are appendages that enable fishes to maintain their position and commute.
3. Caudal fins are often used to propel through the water.
4. Wings in birds are the forelimbs that help in flying from place to place.

Explanation of incorrect options:

Option A:

1. Wings are the locomotory structures of birds and not fish.
2. Fins are the locomotory structure of fishes and not birds.

Option C:

1. Wings are present in birds and are completely absent in fishes.
2. Legs are locomotor organs of land animals, since birds are aerial animals, this is not applicable.

Option D:

1. Legs are present in land animals and fishes are aquatic animals and do not possess legs.
2. Fins are present in fishes for locomotion and are absent in birds.

Final answer: the locomotory organ in fish and bird is fins and wings respectively.