How is the evolution of a complex organ like the eye explained?
Answer and explanation
Correct answer: By gradual accumulation of small, useful inherited changes
A complex organ can arise through cumulative evolutionary change rather than appearing fully formed at once. Slight inherited variations that improve light detection or image formation may provide an advantage, and natural selection can preserve them. Repeated changes over many generations can produce increasing complexity. Hence option A is correct; B is unsupported, C confuses acquired traits with inherited variation, and D ignores comparative and fossil evidence.
Frequently asked questions
What is the correct answer to this question?
By gradual accumulation of small, useful inherited changes
Why is this the correct answer?
A complex organ can arise through cumulative evolutionary change rather than appearing fully formed at once. Slight inherited variations that improve light detection or image formation may provide an advantage, and natural selection can preserve them. Repeated changes over many generations can produce increasing complexity. Hence option A is correct; B is unsupported, C confuses acquired traits with inherited variation, and D ignores comparative and fossil evidence.
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.
