Lowest regeneration power is found in
a)	Amoeba	b)	Sponges	c)	Coelenterates	d)	Brain cells

(d)

Regeneration is the defined as replacement, repair or restoration of the lost or damaged structures or reconstitution of the whole body from a small fragment of it during post embryonic life of an organism. Brain cells have lowest power of regeneration due to highly specific differentiation.