Question

The eye of an octopus and the eye of a cat show different patterns of structure. Yet they perform a similar function. This is an example of

• A. Analogous organs that have evolved due to divergent evolution
• B. Homologous organs that have evolved due to convergent evolution
• C. Homologous organs that have evolved due to divergent evolution
• D. Analogous organs that have evolved due to convergent evolution

Answer 1

The correct option is D

Analogous organs that have evolved due to convergent evolution

The correct option is D.

Explanation of the correct option:

1. The organs which have similar functions but are different in anatomical structures are called analogous organs.
2. When different organisms independently evolve similar traits it is called as convergent evolution.
3. Here, the eye of an octopus and the eye of a cat are structurally different but perform the same function of sight or vision

Explanations of the incorrect options:

Option A:

1. Analogous organs that have evolved due to divergent evolution
2. The process by which different organisms having common ancestors develop different traits to adapt to varying environmental conditions and needs is called divergent evolution.
3. The eye of an octopus and the eye of a cat have different ancestral origins and they have independently evolved similar traits.
4. Hence, it is the incorrect option.

Option B:

1. Homologous organs that have evolved due to convergent evolution
2. The organs which have the anatomically same structure but are different in functions are called homologous organs
3. The eye of an octopus and the eye of a cat perform the same function i.e. they are analogous organs.
4. Hence, it is an incorrect option.

Option C:

1. Homologous organs that have evolved due to divergent evolution
2. The organs which have the anatomically same structure but are different in functions are called homologous organs
3. The eye of an octopus and the eye of a cat perform the same function i.e. they are analogous organs.
4. Hence, it is an incorrect option.

Final answer: The eye of an octopus and the eye of a cat is an examples of analogous organs that have evolved due to convergent evolution.