A punnet square shows you the different possible combinations and trait outcomes of the alleles.
Answer:
b
Explanation:
Cellular respiration; complementary reaction to photosynthesis, because it's the reaction that cells use to break down glucose molecules and release atp.
Although now it causes more harm than good because it doesn't really have a purpose, it is believed it once was used for humans to digest bone.
Is it just me or is there nothing there?