I wouldn't exactly say that they have a specific "niche".
They do play an important role in biochemical memory and stem cell research.
(Economical role)
They are VERY important for stem cell research because of their extreme rates of regeneration and their ability to regenerate even when cut up into shreds.
Hope this helps!
feeding , breeding and living habits of rhino
after they get inside a host (an animal or person) it starts feeding off from it.
no
A planarian is a flatworm and is parasitic which means that it feeds off living things.
yes
nothing
Now that I think about it, I think it does a little...
KANGAROO feeding habits
mammals and birds
Obivious cats are you stupid?
yes
insects eat from smell of blood