Answer:
A
Explanation:
Before we try to answer the question lets define a few key terms
Key Terms:
Carrying capacity - The max population that can be sustained by the amount of resources in a specific environment
Limited factor are usually expressed as a lack of a particular resource.
Now lets look back at the answer choices
For A,
A. When resources are available, populations grow until they reach carrying capacity.
This statement makes sense because with available resources, a population will continue to increase until the amount of resources isn't enough for the population, in other words the population will increase until its reached its carrying capacity. So this might be the answer, however lets look at the other answer choices just in case.
For b,
B. The more limiting factors affect a population, the greater the population growth.
This statement would not be true because limiting factors usually are expressed as a lack of a particular resources. A lack of resources ( more limiting factors ) would lead to a population decreasing, not increasing, therefore B is not a true statement
For C,
C. The carrying capacity will decrease when there are no limiting factors affecting the population.
This statement would not be true because if there are no limiting factors ( which remember are expressed as a lack of particular resource ) the carrying capacity ( or the max population that can be sustained by the amount of resources in a specific environment ) would not change at all because there are no limiting factors changing the availability of the resources, therefore C is not the answer.
