A group of organisms of the same species living in a particular place is known as

Step 1: Analyze the question The question asks for the term describing a group of organisms of the same species living in a particular place. The key phrases are "same species" and "particular place."

Step 2: Explain the concepts Let's look at each option:

• A. Colony: A group of organisms of the same species living closely together, often with cooperation or physical connection (e.g., ants, bees, corals, bacteria). It is a specific kind of grouping, usually social or structural, not the general ecological term.
• B. Ecosystem: A community of living organisms (many species) interacting with the non-living environment (soil, water, air). It involves multiple species, so it does not fit.
• C. Niche: The role or function of an organism in its habitat, including what it eats, where it lives, and how it interacts with others. It describes a role, not a group.
• D. Population: All the individuals of the same species living in a particular area at a given time (e.g., all the tilapia fish in a pond, or all the baobab trees in a savannah reserve).

Step 3: Solve

• Same species → rules out ecosystem (many species) and niche (a role).
• Group in a particular place → matches the ecological definition of a population.
• Colony is more specific, implying a tightly knit or social group, whereas the question uses the general ecological definition.

Step 4: Answer The correct option is D. population.

Tip: Remember the ecological hierarchy: Individual → Population → Community → Ecosystem → Biosphere. A population is always one species in one place. If you see "same species + particular place," think population.