high school biology textbooks

As a result of sustained research in agriculture, many high yielding varieties /hybrids have been released in our countries (India 2000). In rice, more than 600 high yielding, early maturing, dwarf disease resistant varieties have been evolve..

High Yielding Varieties / Hybrids - As a result of sustained research in agriculture, many high yielding varieties /hybrids have been released in our countries (India 2000). In rice, more than 600 high yielding, early maturing, dwarf disease resistant varieties have be..

Beyond saturation point, light intensity reduces photosynthesis. This effect is called solarization. It can be caused by photo-inhibition and photo-oxidatio..

Bio piracy refers to unauthorised and unlawful access to biological secret and use of such secrets for specific gain. In biological research many secrets have been unravelled. Genetic structures of potentially useful organisms, genetic structures of dangerous mutants o..

The numerical strength and biomass of organisms affect the functioning of ecosystem. In ecosystems, the biotic communities usually contain a few common species represented by a large number of individuals or by a large biomass and a comparatively large number of individual species occurring in sma..

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Seeds are exposed to alternating high and low temperatures to reduce the concentration of the inhibitory substanc..

Ammonia is produced in industry by combining nitrogen and hydrogen under high pressure of 200 atmospheres and extreme high temperature of 400 o C (Haber's process..

Buffaloes are reared in large numbers in India. There are more than ten different breeds of buffaloes in India. Of them, the high milk yielding breeds a..