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Soil pH and Nutrient Availability
Soil pH is the most important factor which governs the availability of nutrients in soil. All the nutrients are absorbed by plants in their ionic form, since the solubility of these ions is pH dependent, the availability of nutrients in soil is also pH dependent. Fig.3.1 gives an idea of the pH range for availability of different nutrients in soils. The pH range of 6.0 to 7.5 appears to be optimum for the availability of most of the nutrient elements.
L A W S OF CLEAVAGE - 1. Sac's Law - According this law, during cleavage each blastomere to form similar blastomere. New cleavae always take place at the right angle of th
CHOLESTEROL Other name is parental steroid. It is present all over the body but absent in cerebrospinal fluid. Cholesterol is found exclusively in animal food. It
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At the present level of the biotechnology what are the main techniques of genetic engineering? The main methods of genetic engineering today are: the recombinant DNA technology
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Explain Fibre and Cardiovascular Disease (CVD)? The role-of dietary fibre in modulation of blood lipids was demonstrated by Keys and his co-workers in a series of experiments c
What are the typical vegetation and the typical fauna of the tropical forests? In the vegetation of a tropical forest broadleaf evergreen trees predominate. On the top of the t
How are the fruits formed? The fecundation is in angiosperms triggers the release of hormones that act upon the ovaries. The ovary wall after that it develops into a fruit that
In almost all animal groups, the mode of speciation is geographic speciation. It is essential that a population which is a prospective new species is geographically isolated from t
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