Question

Which of the following statements is not true?

• A. Wing of bird and butterfly are analougous organ.
• B. Thorn of bouganvillia and tendril of cucurbita are homologous organ.
• C. Sweet potato and potato is an example of homologous organ.
• D. Eyes of octopus and human have similar functions but evolved independently.

Hint:

Analogous organs perform similar functions but differ in structure and origin; homologous organs share a common structure but may serve different functions.

Answer 1

The Correct Option is C

Sweet potato and potato are not homologous organs; they are analogous structures. Although both are underground storage organs, they differ in origin:

• Sweet potato is a modified root.
• Potato is a modified stem (tuber).

Thus, they perform a similar function (storage) but have different anatomical origins, making them analogous. In contrast:

• (A) Wing of bird and butterfly — both used for flying but structurally different — analogous.
• (B) Thorn of bougainvillea and tendril of cucurbita — structurally similar, both derived from stem — homologous.