An important difference between cellular respiration and photosynthesis is that when cellular respiration begins, glucose molecules are split. However, when photosynthesis begins

-ADP molecules are split.
-water molecules are split.
-oxygen molecules are split.
-carbon dioxide molecules are split.

a) carbon, hydrogen

b) carbon, hydrogen, oxygen, nitrogen

c) carbon, hydrogen, oxygen, nitrogen, phosphorus

d) sugar

e) amino acid

f) nucleotide

the peaceful equids (horses, donkeys and zebras) were enslaved by the human race to do our bidding -- sorry, domesticated -- several thousand years ago, and since that time they've been an invaluable resource for transportation, agriculture, warfare, companionship and sometimes-horrifying entertainment.