Question

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In a population, exponential growth
can lead to a lack of resources,
which causes the population
numbers to decline. This is an
example of:
A. a positive feedback loop
B. a negative feedback loop
C. the first law of thermodynamics
D. the second law of thermodynamics
о

Answer 1

Exponential growth can lead to decreasing the population size, which represents an example of a NEGATIVE feedback loop. This control mechanism (negative feedback) is common in nature.

Negative feedback is a homeostatic self-regulatory process by which the output of a given system is fed back in order to reduce its internal fluctuations.

In a negative feedback, an amplified output from the system (e.g., in this case, a sudden increased population size) leads to its self-inhibition.

This control mechanism (negative feedback loop) helps to maintain the homeostatic balance of the entire system in order to reach a set point.

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