Stress thresholds that, once surpassed, shift an ecosystem into an alternative stable state are known as
A)critical variables.
B)essential nutrients.
C)tipping points.
D)tolerance limits.

Question

Quizplus · Accepted Answer

Stress thresholds that shift an ecosystem into an alternative stable state are referred to as tipping points. These points represent a critical threshold after which the ecosystem is no longer able to return to its previous state, resulting in irreversible changes to the ecosystem structure and function. Choice A (critical variables) may be important in understanding an ecosystem's response to stress, but it does not specifically relate to the concept of tipping points. Choice B (essential nutrients) is also not related to the concept of tipping points. Choice D (tolerance limits) refers to the range of environmental conditions within which organisms, populations, or communities can persist, and while it may relate to the concept of tipping points, it is not the best choice.

Stress Thresholds That, Once Surpassed, Shift an Ecosystem into an Alternative