As Johanna runs forward to hit the volleyball over the net, she focuses on it to keep it steady. What allows her to do this? a) Depth perception
b) Space constancy
c) Brightness constancy
d) Size constancy

Design a questionnaire to indicate the level of a person’s wellness. have a friend or family member complete the questionnaire. make a prediction about that person’s wellness and justify your prediction using two or more complete sentences.