Question

Wings of a bird and and wings of an insect are

• A. Homologous organs
• B. Analogous organs
• C. Vestigial organs
• D. Locomotory organs

Answer 1

The correct option is B

Analogous organs

The correct option is B:

Explanation of the correct option:

1. Analogous organs are organs that have different anatomy but perform similar functions and have a different origin.
2. These organisms would have to adapt to the same ecological niche as other organisms. Hence, they may have evolved similar (analogous) organs.
3. Insect and bird wings- perform a similar function of flying but have different structures.

Explanation of the incorrect options:

Option A:

1. Homologous organs are organs that have a similar structure but perform different functions in different animals.
2. Although the anatomical structure of the organ is similar but the function differs.
3. The forelimbs of frog, human, and whale flippers are examples of homologous organs. All the structures are similar but they perform different functions.

Option C:

1. Vestigial organs are organs that were once functioning but have become useless or have reduced their function owing to evolutionary changes.
2. Tail bone in mammals is vestigial while other animals use their tails for balance, when humans began to walk, the tail became useless and evolved into the coccyx (united vertebrae).

Option D:

1. Locomotory organs are a type of anatomical structure that helps in the locomotion and movement of animals.
2. For example, wings, arms, fins, cilia, legs, etc.

Final answer: Wings of a bird and the wings of an insect are analogous organs.