What refers to changes in body size, weight, and motor skills throughout life?

The term that describes changes in body size, weight, and motor skills throughout life is physical development. This encompasses the growth of the body and the refinement of skills needed for movement, which are critical during different stages of life, from infancy through adulthood. Physical development includes numerous aspects, such as changes in muscle and bone growth, the development of motor skills like crawling and walking, and the overall physical health of an individual over time. It is distinct from emotional, cognitive, and social development, which focus on different aspects of human growth and maturation.