In the respiratory system certain structures allow air to pass from the trachea to the lungs. they are lined with thin muscles and coated with epithelial cells. these structures are called
a. bronchial tubes.
b. alveoli
c. bronchioles
d. lobules.

Match each child care option with its benefits. a. no child care expenses b. likely to have values similar to those of the parents c. lots of one-on-one time with a provider d. care offered at schedule hours 1. family member or friend 2. private child care 3. day care 4. stay at home parent