The word you are looking for is communal living.
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.
In terms of ecology, they would be called a population.
That is called a consortium.
The system was called tithing. To read more about this on Answers.com, click on the Related link.
P-o-p-u-l-a-t-i-o-n
A group of flowering plants with a tap root and net venation is called "dicots."
a nucleus is a group of many individual cells living as one organisms
group home
The game is called anagram. You take a word or group of letters and scramble them to create a new word or phrase.
The word group has one syllable.
A group of the same species living in the same area is called a population. Populations are characterized by their size, density, and distribution, and they interact with one another and their environment. Studying populations helps ecologists understand species dynamics, reproduction, and survival rates.
All the members of one species in a particular area are referred to as a population.