Nothing remains the same and habitats are constantly changing. There are two main types of succession, primary and secondary.
A decrease in tenperature could result in birds relying more on feeders to get food.
6CO2+12H2O+light->C6H12O6+6O2+6H2O
Cells undergoing aerobic respiration produce 6 molecules of carbon dioxide, 6 molecules of water, and up to 30 molecules of ATP (adenosine triphosphate), which is directly used to produce energy, from each molecule of glucose in the presence of surplus oxygen
It’s A an generation that’s the only one that makes sense because evolution is a change over time too