How are simple sugars used for energy compared to more complex sugars like the starch in pasta?plz

Which of the following is an oxidation-reduction reaction? (pictured below)

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

Organize the word parts according to where they appear in a medical term.