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.

Research on infants demonstrates that avoidance of heights is linked to self-produced locomotor experience.

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

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

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

During the first year of life, infants make a transition from precision grips to power grips when grasping an object.

In infancy, childhood, and adolescence, muscle growth is by both hyperplasia and hypertrophy.

Which of the following systems are involved in the declining ability to balance with aging? Select all that apply.

Girls begin their adolescent growth spurt approximately 2 years before boys begin their adolescent growth spurt, on the average.