Question

1. a population that has reached the largest number of individuals that the environment can support over a long period of time

contains only top consumers
has changed from a food chain to a food web
has reached its carrying capacity
has no limiting factors

Explanation:

• "Contains only top consumers" is incorrect because an environment supporting the largest number of individuals over time isn't limited to top - level consumers.
• "Has changed from a food chain to a food web" is wrong. A food web is a more complex structure than a food chain, but this change isn't related to the population reaching the maximum supportable number.
• "Has reached its carrying capacity" is correct. Carrying capacity is defined as the largest number of individuals that an environment can support over a long period.
• "Has no limiting factors" is incorrect. Limiting factors (e.g., food, space) always exist, and when a population reaches the carrying capacity, these factors are in balance to maintain that population size.

Answer:

Has reached its carrying capacity