many species because you need a variety of species to make up a population.
This the the short form of the species concept.So,Species.
A population.
Population
a population
a population
a population
A community is a group of many different species, while a population is made up of individuals of one particular species.
This is a population. More formally, a population is a group of organisms of the same species living in the same area at the same time eg the dandelions in a field make up the population of dandelions; the daisies in the same field make up a separate population, the daisy population. Species are different kinds of organisms which can breed with each other but not with other species eg humans are one species, chimpanzees are another and they cannot interbreed.
That would be a community. A population is a group of a single species in a particular area. There would be many different population in the pond.
Usually genus and species.
a population
COMMUNITY: the populations of different species that interact in some way are called a community. POPULATION: all of the individuals of one species that live in the same area at that same time make up a population.