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Oreopithecus, a late rniocene primate had very close resemblances to those of gibbons, although the tooth structure showed that the animal was only a monkey and not a hominoid. Another group of hominoids that were present in moiocene in Europe, Africa and Asia were Pongids.
The oldest of the Pongids was the genus Proconsul. This fossil was dated at 17 to 21 million years before the present. Several species of Proconsul weighed between twenty kilograms (20 kg) to hundred kilograms (100 kg), had premolars and molars similar to those of hominoids but lacked the tusk like canines of modern Pongids. The next major fossil and a descendent of Proconsul was Dryopithecus. This fossil had teeth like those of living apes, and long limb bones. The long limb bones were suggestive of beginnings of brachiation. Dryopithecus belongs to the subfamily Dryopithecinae and family Pongidae which included chimpanzees gorillas and orangutans.
There are two main sources of pollution: (1). Natural Sources: (a) Volcanic ash (b) Marsh gas (CH4) released from decay of organic matter.
Summer Stratification - Thermal stratification Thermal stratification is fairly pronounced during the summer seasons in most lakes of the temperate (cold) regions but is rare
Who is known as Father of English Botany? William Turner (1515-1568), whose 'A New Herbal' printed in English appeared in 1551 (first part), 1562 (second part) and 1568 (third
Animal wastes Large quantities of animal wastes are available in the country but generally they are low in nutrient content with poor feeding value to the animals. However, po
Pachytene: The pairing of homologous chromosomes is completed. Chromosomes become more and more thick. Each bivalent has four chromatids , which wrap around each o
Q. What are the major water properties that make water special for life? The water properties that make water biologically important are molecular polarity, thermal stability (
Lens - Organogenesis of Eye and Limb There is much experimental proof that the lens formation in many species is dependent on the induction by the optic vesicle while it conta
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Explain why the chance of fertilisation in humans is restricted to only a few days each month. Sperms can fertilise an ovum for up to about three days after entering the female
The Family Nutrition Approach This involves relatives/family who live in the client's household; in assisting the client to make necessary dietary changes to prevent or to
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