Question

Fragmentation occurs in:

• A. unicellular organisms
• B. multicellular organisms
• C. both of these
• D. bicellular organisms

Answer 1

The correct option is B

Explanation of the correct answer:

1. Fragmentation is a method of asexual reproduction in which an organism splits into many fragments and each fragment develops into fully grown individuals.
2. To break into living fragments the organism is required to be multicellular.
3. It occurs in multicellular organisms and in those organisms that live together in colonies.
4. E.g., algae.

Explanation of the incorrect answers:

Option A:

1. Unicellular organism on breaking into pieces will die away.
2. It won't be able to regrow.

Option C:

1. Only multicellular organisms can reproduce by fragmentation.
2. Unicellular organisms divide by fission.

Option D:

1. Bi-cellular organisms usually divide by budding.
2. These don't show fragmentation.

Final answer:

Fragmentation occurs in multicellular organisms.