What nondigestible form of complex carbohydrate occurs naturally in plant foods such as leaves, stems, skins, seeds, and hulls?

Dietary fibre or Fibre.

Explanation:

Dietary fibre is a type of carbohydrate that cannot be digested by our bodies' enzymes. It is found in edible plant such as cereals, fruits, vegetables, nuts, lentils, grains etc.

Fibre is advantagoues to weight loss and efficient bowel movements.

velocity and height

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.