Biochemical function within any cell is determined largely by specific enzymes. Remember, enzymes are proteins. Different sets of genes must be tuned on and off in the various cell types. This is how cells

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

C- a hypothesis or d- an observation

Lipid because of the high percentage of carbon to carbon bonds, which store more energy than other bonds.