A certain finch gets food by cracking seeds open. Its short, strong beak is
an example of:

Evolution

Explanation:

The finch evolved to have a short and strong beak because that certain finch's diet composed of seeds that needed to be broken to be eaten.

Like this finch, other finches evolved their beaks to fit their diets.

Carbohydrates, protein, lipids, nucleic acid.

Explanation:

Macro molecules are large biological molecules that is found in the organism. They are large and complex.

These molecules can be used to derive energy for the body. First compound that is used during the time of energy is carbohydrate.

Then the next used compound is lipids(fats) and then protein is used by the body to obtain energy from them.

These molecules are carbohydrates, protein, lipids and nucleic acids.