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Homo Habilis-The First Tool Makers:
One of the most important developments in human evolution was the dramatic expansion in brain size which, according to the fossil data available so far, began atwo million years ago. Certain specimens recovered from deposits in East Africa apparently have brain capacities in excess of 650 cm3 and close to 800 cm3. Thesespecimens were taken to represent the first appearance of our om kind and weretermed Homo habilis. The species name Homo habilis, means, literally, handy mHomo habilis walked upright.
The bones of the hand, while displaying many characteristics of modern humans, are somewhat curved in places and more robusthan in modern man, i.e. Homo sapiens. The leg and foot bones have characteristthat are both ape-like and human-like, but overall, they are much closer to those o,nodern humans than to apes. The leg and foot were those of a habitual two-footedanimal. The simultaneous occurrence of Homo habilis fossils and crude flakes anstone tools indicate that they used tools. There is no evidence that this early form, homonids ate meat.
what is the name of the theory that explains plate movement?
What is Synthesis of Specialized Products from Amino Acids In addition to serving as building blocks for proteins, amino acids are precursors of many nitrogen containing compou
INTRODUCTION : In the first unit of this block you read about hazards due to electricity and gases in the science laboratories. 'The second unit deals with yet another type of com
a) Name the primary minerals present in an igneous rock. a ) Quartz (SiO2), feldspars, amphiboles, pyroxenes and micas are the most common primary minerals in igneous rock
Explain the Hyposecretion during Childhood Hyposecretion during childhood: Due to deficiency of growth hormone or its receptors, stunted growth of the skeleton and organs occur
can you give explanation on RPME and its working
Linh has been brought by ambulance to the Emergency Department of the local metropolitan hospital where you are working, following a drug overdose of thirty Paracetamol tablets whi
Explain an Amniocentesis An amniocentesis is a process used to obtain a small sample of the amniotic fluid which surrounds the foetus to diagnose chromosomal disorders and open
TO SHOW THAT AIR HAS WEIGHT Drive a thin nail by the exact centre of a long rod such as a metre stick or a yard stick. Balance the stick by resting the nail on the rims of two
Explain Immunoglobulin A - Classification of Antibodies Present in secretions, protects mucosal surfaces. It is found in tears, saliva, and gastrointestinal secretion, respirat
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