What can indicate that two organisms may have a common ancestor?
Answer and explanation
Correct answer: Similarity in basic structure
The governing concept is comparative anatomy and homologous organs. If two organisms have body parts with a similar basic structural plan, even when those parts perform different functions, the similarity may have been inherited from a common ancestor. Such structures are called homologous organs and provide evidence of divergent evolution. Food colour, lifespan, and sound loudness do not establish evolutionary relationships. Hence option A is correct.
Frequently asked questions
What is the correct answer to this question?
Similarity in basic structure
Why is this the correct answer?
The governing concept is comparative anatomy and homologous organs. If two organisms have body parts with a similar basic structural plan, even when those parts perform different functions, the similarity may have been inherited from a common ancestor. Such structures are called homologous organs and provide evidence of divergent evolution. Food colour, lifespan, and sound loudness do not establish evolutionary relationships. Hence option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
