<span>Detection of stimuli is a responsibility of the PNS while perception of the stimuli is a responsibility of the CNS.
</span>PNS stands for Peripheral Nervous System (PNS), while CNS stands for Central Nervous System.<span>
They are the two components of the nervous system, </span>central nervous system.
<span>The CNS consists of the brain and spinal cord, while the PNS includes all other nervous system tissue. </span>
Answer:
No population can grow beyond certain limits. This is called a limiting factor.
Explanation:
Let's take the example of rabbits.
In the warmer temperature, the rabbit population grows, and the adults grow older/die a bit.
In colder temperatures, there is less room to support the population, as well as not enough food to support so many rabbits, so some pass away.
Another example of rabbits is mates! If there aren't enough of each genders, then there won't be enough mates to reproduce.
This is why the rabbit/squirrel population is never really expanding/"contracting".
Hope this helps!
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