Because premature babies do not produce enough surfactin, they may suffer from
A) heart irregularities.
B) respiratory distress syndrome.
C) incomplete gross motor control.
D) inability to digest certain foods.
Question 2
One danger to premature babies is respiratory distress syndrome, which is caused by lack of
A) brain tissue in the medulla.
B) space in the trachea.
C) myelination of the spinal cord.
D) surfactin in the lungs.
