Final answer:
It is false that preterm babies sleep less than full-term babies; preterm infants typically require more sleep. A fetus can produce urine, and the umbilical artery carries deoxygenated blood away from the fetus.
Step-by-step explanation:
The statement that preterm babies sleep less than full-term babies is generally false. Preterm babies often require more sleep than full-term babies because growth and development that would have occurred in the womb is taking place in the outside world. They spend a higher percentage of their sleep time in REM sleep, which is important for brain development. However, their sleep may be more fragmented and less predictable.
Further relevant information:
- A fetus can indeed produce urine, which is a true statement. The kidneys begin to function and produce urine within the amniotic sac.
- The umbilical artery carries deoxygenated blood away from the fetus to the placenta, not oxygenated blood to the fetus, making that statement false. The umbilical vein is the vessel that carries oxygenated blood to the fetus.