Which term describes the maximum number of organisms an environment can sustain indefinitely?

• A. Carrying Capacity
• B. Population Growth
• C. Ecological Footprint
• D. Biomass Limit

Answer: (A)

Carrying capacity is the maximum number of organisms of a species that an environment can support indefinitely given the available resources and conditions like food, water, shelter, and space. When a population gets close to this limit, resources become harder to share, so growth slows or the population level fluctuates around that stable size. This value isn’t fixed; it can rise or fall if the environment changes, such as with more/less resources or changes in habitat.

Population growth is about how fast the population changes over time, not the size that can be sustained long-term. The ecological footprint measures how much resource use a person or group requires, not the maximum sustainable population of an environment. Biomass limit isn’t a standard term used for this concept.