Question

An example of homologous organs is

• A. Our arm and a dog's fore-leg
• B. Our teeth and an elephant's tusks
• C. Potato and runners of grass
• D. All of the above.

Answer 1

The correct option is D All of the above.

A homologous structure is an example of an organ or bone that appears in different animals, underlying anatomical commonalities demonstrating descent from a common ancestor. The arm of a human and the leg of a dog are homologous structures. They are different and have a different purpose, but they are similar and share common traits. Elephants' tusks are specialized incisors for digging food up and fighting. They are homologous structures to human teeth, inherited from a common ancestor with incisor teeth. The corm of colocasia, tuber of potato, and runner of lawn grass are all homologous structures.