A controlled experiment is the type of experiment when <span>two experiments are identical except for one variable. So the word missing is Controlled experiment. Hope this helps</span>
Answer:
i tried puting how the boxes is but the answer is Rr,Rr,rr
so chice number 3 :)
Rr rr
Rr rr
They are biotic ... ignore this part
Water; Inorganic compound
Oxygen; Element found in water
Carbon; Element that is part of most organic compounds
Carbohydrate; Energy-rich organic compound
Hope that helped!
