Question

What will happen if Hydra is cut transversely into two halves?

• A. Build up the lost part
• B. Tend to reunite
• C. Cut ends heal up
• D. Both halves die

Answer 1

The correct option is A Build up the lost part

Power of regeneration was first discovered in Hydra by Trambley, in 1740. The climax of regeneration in which the whole body can be developed from a body fragment is found in Hydra among the coelenterates. Morphallaxis is the reconstruction of an entire animal from a small fragment by reorganizing the existing cells. The regenerated animal is far smaller than the original one after the completion of the process. It grows to attain the normal size in Hydra.

So the correct answer is 'Build up the lost part'.