In my opinion it is: class/classes
A group of salmon is called a run when they swim together up a river to spawn.
This behavior is called aggregation or clustering. Organisms may group together for various reasons such as protection, foraging, mating, or social interaction.
A small group of people standing close together is often called a cluster or a huddle.
A group of protozoans living together as one is called a colony. Each individual protozoan in the colony retains its own identity but works together with the others for the collective benefit of the group.
They are called a tissue.But they should be bonded,perform specific functions and have a similar origin.
I believe it would be called a Children's Choir.
A group of Tigers that live together are called a pack.
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".
Children
A group of similar individuals living together in an area is called population.
A group of Chipmunks is called a "sweet" of Chipmunks! Isn't that cute?!
A group of raptors is called a "kettle" when they are migrating together.
A preschool classroom should look bright and interesting, but it should not overwhelm the children. It should have areas called centers where children do play activities and an area where the group can be taught together. It should be organized and have children's supplies where they can easily reach them, and a place for each child to put their private things, like their sweaters or coats. The walls can be used to put children's finished work on. Classroom rules should be posted in the room.
they are called a team;-]
The group is called a "herd".
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