What is not directly involved in cellular respiration?

Granite rock is light in color. which feature directly contributes to this color? the process that forms granite the amount of silica minerals in granite the shape of the grains found in granite the unique pattern formed by grains in granite

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?