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Australopithecus-The Transitional Human Forms
By about two million years ago, there were several well established hominid ancestors in Africa. One of the earliest of these is Australopithecus. Fossils of Australopithecus, which have been recovered from South and East Africa, show that their brains were relatively small, the bones enclosing the brain, therefore, were rather ape like, but the face was shorter than in apes. The enamel of the teeth indicated that Australopithecus ate essentially fruits. The evidence for two-footed posture in Australopithecus is strong as the back bone shows the typical hominid curvature. Also the hip bone, which is the skeletal frame to which the legs are attached is shorter than in apes, although it is not as short as in modem humans.
Density of the Earth's Layers Density and gravity caused the proto-Earth to cool and settle into four distinct layers. The four layers are, from top to bottom: the crust, the
Specific gravity and pH of Urine Normally, the first morning urine has a specific gravity of 1.015 to 1.020. Normal urine is usually slightly acidic with a pH of about 6.0.
Explain the property of Water Water has a significant property called surface tension that markedly influences its behaviour in soils and may be measured by level of water rise
Genital and Reproductive Function: J.Y. is a 43-year-old woman who has detected a lump in the upper outer quadrant of her left breast while performing her monthly self-breast exam
what are relations of ecology with other sciences?
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