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.

E. a complete central nervous system

Explanation:

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.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

answer; i believe that the correct answer is (scientific approach)