The is the total number of organisms that an ecosystem can support.
a. tolerance range
b. carrying capacity
c. competitive exclusion principle
d. population

Answer;

B. Carrying capacity

Explanation;

-The carrying capacity in a biological ecosystem is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment. This is without degrading the natural social, cultural and economic environment for present and future generations.