In my opinion it is: class/classes
this process is called symbiosis
A group of tissue working together to do a job is called an organ.
Group of organisms working togeether is called as cell specialization.
Compression
A group of flowers may be called a bunch (a group of things growing close together); a cluster or clump. A bouquet is a group of flowers arranged for its beauty.
I believe it would be called a Children's Choir.
A group of Tigers that live together are called a pack.
A group of similar individuals living together in an area is called population.
Children
Horses are just called "horses" unless they are in a group together. When horses get in a group together, they are then called a "herd".
The group is called a "herd".
they are called a team;-]
this process is called symbiosis
A group of herbivorous dinosaurs traveling together is called a herd. A group of carnivorous dinosaurs traveling together is a pack.
a group of rabbits is called a warren
A community or ecosystem.
A group of lions living together is called a pride.