Final answer:
Motor development is influenced by both nature and nurture, with genetic potential and environmental factors both playing a role.
Step-by-step explanation:
Motor development is influenced by both nature and nurture. Nature, referring to genes and biology, determines the genetic potential of an individual's motor development. Nurture, on the other hand, refers to the environmental factors, experiences, and learning opportunities that shape and enhance motor development. For example, infants go through a sequence of motor milestones, such as holding their heads up, sitting with assistance, and eventually walking, which is influenced by both their genetic potential and environmental factors.