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Before we further proceed to discuss the fossil history of the humans we shall briefly look into what distinguishes humans or genus Homo from his ancestors namely the apes. These differences are clearly indicative of the trends in human evolution which are to a certain extent supported by the available fossil evidence. Is it possible to specify certain criteria for assigning an organism to the family hominidae and the genus Homo? The answer to this question will also indicate certain definite trends in human evolution.
THEORY OF NATURAL SELECTION OR DARWINISM Theory of CharIes Darwin (1809 - 1882) about evolution marks the beginning of an era in understanding of evolution. At the age
How much ampicillin (sodium sal, mw=371.40) would you dissolve in 400 mL of water to make 80 mg/ml solution of ampicillin?
Do moulds grow better where it is warm or cold? This time put single culture dish in a warm dark place and the other in a cold dark place. Study the dishes after a some days.
Types of cells in Phloem The phloem consists of 4 types of cells: i).sieve elements, ii) companion cells, iii) phloem parenchyma and sometimes iv) phloem fibres. The metabolit
R in d e rp es t It is also known as cattle plague resulting in high fever, diarrhoea and high mortality rates. In year 2006, OIE has declared that India is free from rin
Two compartments of equal volume of physiological saline are divided by a membrane permeable only to oxygen. At 1 AM, equal amounts of oxygen are dissolved into both left and
How dissimilar are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need to agitate their body to swim while bony fishes do not? Bony fishes have a
what are the physiological adaptation shown my prey as defence
What is digestion? The ingested food material is broken down into smaller constituents which are assimilable by the blood. The process through which the major nutr
Do all mammals have a placenta? Mammals of the monotreme group (echidnas, platypus,) are oviparous, egg-laying, and they do not have a placenta. Mammals of the marsupial group
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