Question

A fish unlike a spirogyra cannot reproduce through fragmentation process. The possible reason for inability of fish is …………………………………

• A. Complexity in body design
• B. Special cells are involved in reproduction
• C. Cells and tissues are well differentiated
• D. All of the above

Answer 1

The correct option is D

All of the above

Multicellular organisms cannot simply divide cell-by-cell. The reason is that many multi-cellular organisms, as we have seen, are not simply a random collection of cells. Specialised cells are organised as tissues, and tissues are organised into organs, which then have to be placed at definite positions in the body. In such a carefully organised situation, cell-by-cell division would be impractical.