There are many factors that influence life on earth. a biotic factor affecting life on the entire planet is the

living factors: other organisms

in general, biotic factors are the living components of an ecosystem and are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores. Examples of biotic factors include: Grass as producers (autotrophs).

answer; i believe its (ovulation);

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.