Combined biotic and abiotic factors that describe where an organism lives are called what?

• A. Habitat
• B. Predation
• C. Population density
• D. Fossil fuel

Answer: (A)

Habitat refers to the combined biotic and abiotic factors that describe where an organism lives. Biotic factors are living things in the environment, such as food sources, predators, competitors, and potential symbiotic partners. Abiotic factors are nonliving aspects like temperature, moisture, soil, light, and pH. Together, these elements determine whether an organism can survive, grow, and reproduce in that place. For example, a pond habitat includes the water chemistry and temperature (abiotic) along with algae and aquatic insects (biotic). It’s helpful to contrast this with niche, which is about how the organism uses resources and its role within that environment, not just where it lives. The other terms don’t describe the living space as a whole: predation is about interactions, population density is a count of individuals, and fossil fuel is an energy source.