The advantage of using windmills would be that it is natural energy, and even if ita not as windy one day thats okay because the momentum from the previous day would still kept the windmill going, but with how high windmills are there will always be wind.
<span>Eventually the smaller, lighter beetles will out breed the larger, darker ones. Because they can avoid predators more easily, allowing them to reproduce more often and with better results. The larger, darker beetles will inevitably be found more often by predators and as such won't be able to reproduce as often, or as safely, as the smaller, lighter beetles.</span>
It illustrates the cycling of matter, just like in a natural ecosystem.
Option D.
<h3><u>Explanation:</u></h3>
The natural stable ecosystem is defined as the ecosystem which has the members doing their part of job and each and every member contribute to the stability of the ecosystem by completing food chains.
Here in this bottle ecosystem the boy put the stones, rocks, water which gives proper nutrition to the growing plants and animals which are also introduced by the boy. The plants produce oxygen and consume carbon dioxide whereas the animals consume oxygen and produce carbon dioxide. Thus the cycle is maintained and stability is achieved.
The Answer Is C) Chloroplasts. Hope This Helps.