Name the population you want to study, for instance, "all people aged 18 – 22 in the United States" or "all professional baseball players in the National League."

All professional ballerinas.

Explanation:

To see how they achieve near perfection from their stretches and exercises to Thier rehearsals and onstage. How they take care of a hectic schedule and deal with the pain that comes with being on pointe up to 8 hours a day.

a

explanation:

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.