NEET Solved Paper 2014 Question 48
Question: Planaria possess high capacity of [AIPMT 2014]
Options:
A) metamorphosis
B) regeneration
C) alternation of generation
D) bioluminescence
Show Answer
Answer:
Correct Answer: B
Solution:
- Planaria are type of flatworms belonging to phylum-Platyhelminthes. They are the simplest form of multicellutat animal. They have high capacity of regeneration of new tissue at the wound site via cell proliferation (blastema formation) and the remodelling of pre-existing tissue to restore symmetry and proportion. This is due rieoblast cells. These cells are usually scattered throughout the body and are able to participate in any type of development. The regenerative capacity of different body sections is an indicator of the presence of different numbers of neoblast cells.
