economic growth center

1) They produce food for all organisms 2) They provide beneficial substances like drugs, tannins, fibres, rubber, vegetable oils, fuel, condiments. 3) Some plants contain alkaloids which check growth of cancer cells. Example: Rosy periwinkle. 4) Plants release O 2 , cool environment by r..

Consequences of Over Population/Impact of Population Growth - India is the best country to study the consequences of over population. Geometric growth in population has pushed our country into population explosion leading to number of serious consequences. Some of them are: Decr..

The growth and yield of food crops are also seriously damaged by various insects. Each insect attacks the crop in its own style and damage the crop to complete its own life cycle. The insects attack almost all parts of crop and the damage may be direct loss of economic pro..

The growth and yield of food crops are also seriously damaged by various insects. Each insect attacks the crop in its own style and damage the crop to complete its own life cycle. The insects attack almost all parts of crop and the damage may be direct loss of economic product o..

An operon is the unit of transcription. When excess protein is present, it is no longer economical for the cell to use up its energy and materials in the synthesis of enzymes that are not immediately needed. Hence, the protein synthesis is stopped. This is clearly advantageous for the cel..

>Rate of Growth of Population Year Global population Growth Year Indian population (million) Growth % annual 1850 1 billion - 1901 236 - 1930 2 billion 1 billion / 80 yrs 1911 252 1.4 1965 3 billion 1 billion / 35 yrs 1921 251 0.1 1980 4 billion 1 billion/15 yrs 1931 2..

It is defined as the capacity of environment or an ecosystem to support and sustain a level of population under an ideal set of conditions. Carrying capacity is a ceiling of population, beyond which the environment fails to support the population leading to natural decrease in population. Usually..

. Further decomposition of these annual grasses lead to replacement by perennial grasses like Cymbopogon, Heteropogon etc. Some small animals also invade the habitat. d) Shrub stage - Further weathering or rocks and death of herbs make the habitat more suitable for the growth of shrubs li..

Secondary phloem is the phloem that is formed during secondary growth. It is a derivative of secondary meristem. Secondary phloem is characteristic feature of only dicots. It is also known as bast. It is also of commercial importance since it yields bast fibers. The following table summ..

Asia has 60% of global population and continues to dominate the global population in next 50 years. Some countries in Europe have negative or zero growth of population. In India, U.P is a populous state but density of population is highest in West Bengal, literacy rate and sex rat..