<span>C. Several billion,,,,,,,,,,,,,,,,,,,,,</span>
Answer:
Sugar and phosphate
Explanation:
sugar and p h o s p h a t e
I am no expert but I think the correct answer is C.
3.24a khbbddhufbvbncyhncfnfghvvxdggnhk
False there may be two or more dependent variables in a well designed experiment