The best answer here is they show seasonal difference in flowering. if they self pollinated they could still interbreed assuming they flower in the same seasons
Cellular respiration is the term given to the metabolic reactions responsible for the conversion of biochemical energy in nutrients to adenosine triphosphate (ATP) with the generation of waste productions. ATP is required to provide the chemical energy to reactions in the cell that maintain homeostasis.
The finches are an example of adaptive radiation. Adaptive radiation is a process in which organisms diversify rapidly into a multitude of new forms, particularly when the environment makes new resources available, creating new challenges and opening environmental niches.