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PopulationYou must be familiar with the term 'population'. It is one of the most talked about issues of this century. It is feared that the rapid growth of the world population if allowed to continue, might outstrip the food supply in the near future. The present high rate of population growth is a major concern of the governments, scientists and administrators. Have you ever wondered as to what is meant by population?In a technical sense 'population' is defured as a group of freely interbreeding the same species present in a specific area at a given time. For example, when we say thatindividuals of the population of a city is 50,000, we mean that there are 50,000 individuals of Homo sapiens in that town. Other living organisms, for example cats and dogs present in the city are not included as they are populations of two different species.In nature, population of a species is subdivided into a number of local breeding populations called deme. Demes are geographically separated populations of the same species. For example, the garden lizards of Qutub Minar. Delhi, form a separate deme from the garden lizard of Lodi Gardens, Delhi or the garden lizards of Swaraj Bhawan, Allahabad. Consequently, in a deme each individual has an equal opportunity of mating with another individual of the opposite sex, but not with individuals in another deme. Because of frequent mating and similar environmental conditions members of a deme resemble each other more closely.A population exhibits certain characteristics which can only be expressed at the population level and not shared by the individuals of the population. For example, individual organisms are born, grow and die but characteristics such as birth rate, death rate, density are only meaningful at the population level.
If given this in this sequence to find surface area, 1 cm x 2 cm x 2 cm block, am I to assume it is written in LxWxH format? I actually think the length is 2 though and the width i
What are some biological examples in which lysosomic enzymes play a fundamental role? The remodelation of the osseous tissue, the function of acrosomes in sperm cells and the e
what are the kinds of tetrasporic embryo sac...detail information
Contra Indication : It is absolutely contra indicated if their is more than trivial aortic regurgitation. Aortic aneurysm and severe aorto iliac disease are also contra indicatio
What are the multiple alleles? is there dominance in multiple alleles? The Multiple alleles is the phenomenon in which the similar gene has more than two different alleles (in
Ask Prepare a 2-4 page summary of nucleic acid amplification techniques that are being explored in the development of nucleic assays for clinical use. Research and identify a mo
Explain Relative Quantitative difference of Protein Taxonomy This analysis involves the study between the amounts of different proteins and more significantly, of different con
BRONCHOSCOPY: Bronchoscopy is the passage of lighted bronchoscope into the bronchial tree. Bronchoscopy may be performed with rigid steel of flexible fiberoptic instruments.
Galactose Metabolism Galactose goes to the liver via portal blood and is phosphorylated by galactokinase togalactose- 1 -phosphate (GIP) using ATP as a phosphate donor as s
Results : Pericardiectomy used to have a mortality of 10-15 per cent in the earlier era. At present it is around 3 to 5 per cent and does not approach 0 per cent even though it
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