Bone composition changes over the life span, becoming more inorganic in composition and therefore more brittle in older adulthood.

Which of the following is a characteristic of proficient sidearm striking? Select all that apply.

Posture can affect the reaching behavior observed in infants.

By age 6, children can methodically explore objects with their hands, sight unseen.

Which characteristic is shared by older adults and infants walking?

When are infants first able to use the arms in complementary roles, such as holding a box lid open with one hand while the other removes an object from the box?

The kinesthetic receptors begin functioning after birth.

Just several days after birth, infants can perceive their mothers’ faces.

Actions accomplish which of the following? Select all that apply.

Which view of the development of reaching now seems to be the most accurate?