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.
A girl child or a boy child will be established depending on the combination of sex chromosomes. During the first trimester, the fetus grows to about 3 inches long and weighs about 1 ounce. The fetus' nervous system, gastrointestinal system, spinal cord, senses, brain, heart and lungs begin to develop.