I think the answer to this question is 3 groups
Also, cellular respiration is c6h12o6 + o2 -> h2o + co2 and energy and photosynthesis is backwards of photosynthesis. It’s light energy + co2 + water to make c6h12o6 and o2. So the reactants in cellular respiration are the products in photosynthesis and the products in cellular respiration are the reactants of photosynthesis
No we dont. us males have one less.
American - inch foot yard mile (imperial)
UnitedKingdom- cm mm km (metric)
Hope this answers the question well enough