: Structure of the brain and spinal cord, reflex actions, and the role of hormones in body regulation.
: Open-ended questions requiring a detailed written explanation. Biology Studies in Russian Schools - The Distant Reader
: Vitamins, water-salt balance, and the transformation of energy within the body.
: Blood composition (plasma and cells), blood types, immunity, and the circulatory system (heart and blood vessels).
: Structure and function of the kidneys and urinary tract.
: Anatomy of the digestive tract, functions of digestive glands, and the process of nutrient absorption.
