Question

Why more complex organisms cannot give rise to new individuals through regeneration? [3 MARKS]

Answer 1

Each point: 1 Mark
More complex organism cannot reproduce by regeneration process because:

1. Their body is highly complicated.​There are specific organs to do specific functions. There is division of labour in the body of complex organisms.
2. Regeneration is carried out by specialised cells, which are not present in complex organisms.
3. Complex multicellular organisms cannot give rise to new organism because the tissue and specialised cell make up the organs in the body. Due to this high degree of specialisation, multicellular organisms cannot reproduce by regeneration of a part of some tissue.
4. Organisms at higher complex levels cannot give rise to new individuals through regeneration because they have organisation of their organs system at different levels.
5. All these organ systems are interconnected and work in full coordination. They can regenerate a few of their lost body parts like skin, blood, muscles, etc. but can’t give rise to new individuals.