Question

explain regeneration in hydra

Answer 1

From a single cut along the body column two different types of regeneration arise: foot regeneration from the apical part and head regeneration from the basal part. The high proportion of stem cells in the Hydra body column supports these fast and efficient processes.

Answer 2

HEY BUDDY!!!!!!!

Regeneration in Hydra:

i. Regeneration is the ability to restore lost or worn out parts of the body. The capacity to replace or regenerate parts lost by injury or otherwise is allied to growth after fragmentation.

ii. Young animals and species low in the evolutionary scale usually have greater re­generative power than the older or higher animals.

iii. Regeneration power in hydra was reported first by Trembly (1744). Hydra, if cut into several pieces, each will regenerate the lost parts and develop a whole new individual.

iv. The body parts usually retain their polarity in original, with oral end developing tentacles and aboral end, basal disc.

v. If the head of hydra is split into two and the parts are slightly separated, it results into a Y-shaped hydra or two-headed indi­vidual, having two mouths and two sets of tentacles.

HOPES IT IS OK