The development of a. ozone
factored in the development of complex organisms.
C. cyanobacteria
d. all of the above
b. oxygen
Please select the best answer from the choices provided
o O O O O
I 0 0

a chair, a bed, and a toothbrush

explanation:

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.

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.