Question

what is the carrying capacity of an ecosystem?
a. the total number of organisms alive at the same time in an ecosystem
b. the minimum number of individuals needed to have balance in an ecosystem
c. the total number of individuals, living and dead, that have been supported by an ecosystem
d. the maximum number of individuals that an ecosystem can support without harming the ecosystem

Explanation:

To determine the correct answer, we analyze each option based on the definition of carrying capacity:

• Option A: The total number of organisms alive at the same time is the current population, not carrying capacity.
• Option B: Carrying capacity is not about the minimum number for balance; it's about the maximum sustainable number.
• Option C: Carrying capacity focuses on living individuals the ecosystem can support, not including dead ones.
• Option D: This matches the definition of carrying capacity, which is the maximum number of individuals an ecosystem can support without degrading its resources or harming itself.

Answer:

D. the maximum number of individuals that an ecosystem can support without harming the ecosystem