Answer:
I think it would be they will eventually reach their carrying capacity.
The best model there is for the carbon cycle
The primary inspiratory muscles are the diaphragm and external intercostals. Relaxed normal expiration is a passive process, happens because of the elastic recoil of the lungs and surface tension.
I’ll answer this in 2 parts. For the “directly” part, plants need energy from sunlight to grow. Even we benefit from the sun because it gives us Vitamin D. Now for the “indirectly” part, herbavoirs get their energy from the sun because they eat plants that have energy which came from the sun which also goes back to the herbavoirs.