At eight weeks of development, the fetus has all of the following except ______.
a. a beating heart.
b. fully formed facial features.
c. a fully formed digestive system.
d. well-defined fingers and toes.
e. a complete central nervous system.
The central nervous system is one of the last things to develop. At 8 weeks, however, you can listen to it's heart, has toes and fingers, ears and even a nose.
