The Greek civilization came after the Minoan. About 2000 B.C., people from the north moved southward into the peninsula of Greece. These people-the Achaeans built walled cities in the southern part of Greece. Their most important city was Mycenae.
In human development, a fetus (/ËfiËtÉs/ ; plural fetuses), also spelled foetus, is a prenatal human between its embryonic state and its birth. The fetal stage of development tends to be taken as beginning at the gestational age of eleven weeks, i.e. nine weeks after fertilization.t the start of the fetal stage, the fetus is typically about 30 millimetres (1.2 in) in length from crown to rump, and weighs about 8 grams. The head makes up nearly half of the fetus' size. Breathing-like movement of the fetus is necessary for stimulation of lung development, rather than for obtaining oxygen.
Fetal Development Basics & Pregnancy. At 4 weeks, the cells of the fetus are specializing into a nervous system, hair, organs, and skin. At 12 weeks, the fetus is around 2 _ inches in size and makes movement on its own. At 20 weeks, the nervous systems functions, sex can be determined, and you will feel your baby move.At 28 weeks, the fetus weighs over 2 pounds and if born prematurely, would most likely be able to survive. At 32 weeks, the baby weighs 4 pounds and fat layers begin to develop under its skin.our doctor will use your gestational age to track your baby's growth and development and possibly to schedule tests throughout your pregnancy. Normal gestation can range from about 37 to 41 weeks, so estimated due dates are accurate for only about one out of every 20 pregnancies.