For the most part, genes contain the instructions to make a.) fats b.) carbohydrates c.) dna d.) proteins

Answer by YourHope:

Hi! :)

For the most part, genes contain the instructions to make proteins!

:)

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.