A community is several species of animals interacting, while a population is
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A community is made up of several species of organisms interacting with each other within a given ecosystem, while a population refers to a group of individuals of the same species living in the same area at the same time.
Yes, a grassland is an ecosystem. It consists of a community of plants, animals, and other organisms interacting with each other and their physical environment in a particular area characterized by grasses as the dominant vegetation.
When one species becomes overpopulated another species of higher food chainstatus may calm down the population. Also, animals depend on one another for survival and according to the food chain.
Usually in biology when someone refers to a population, they are talking about a group of individuals of the same species that are able to intermingle. In statistics terms, a population is any group that you can take a sample from. You can have a single species population of ants, a multispecies population of ants, or an even greater number of species in an insect population.
It is a community.
A population is a single species within a specific geographical area. Geographical area can be literal (like a tide pool) or artificial (a 25'x25' plot of forest) depending on the study. A community is made up of all the individual animal species living within a specific geographical area. For example, in a tide pool the community would be the seastars, crabs, barnacles, algae, etc. An ecosystem is all the individual species living within a specific geographical area plus all abiotic(non-living) factors with which they interact. Using the tide pool example, an ecosystem includes all the animals above but also the seawater, rocks, minerals, wind, sunlight, etc.