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The primary factors that influence the formation of these biomes are climatic, like precipitation, temperature, seasonal extremes and winds. However, topography and light are also important factors. Of all these, precipitation is the chief limiting factor that determines whether a biome would be a forest or a desert or a grassland. If the average annual precipitation in the region is less than 25 cm the place would be a desert containing little vegetation. This would be true regardless of average temperature, light and quality of soil. If a region has moderate average precipitation, around 25-75 cm a year, grasslands would be formed. A region would be a forest if the average annual precipitation is more than 75 cm. The combination of average temperature and average precipitation, however, decides the type of desert, forest or grassland present in a region.
Permeability Permeability is the ability of a soil to transmit water or air. Permeability or infiltration rate is measured in terms of the rate of water flow through the soil i
What category do pisces, mammalla, amphibia, reptilia and aves fall into
Rapid Crawling and Swimming Rapid Crawling This movement depends upon mainly on the contralateral waves of contraction of the longitudinal muscles of the body wall that
Effects of Kwashiorkor on children Kwashiorker is an African word- it means displaced child. The child is weaned out very early and is given foods having high amounts of carboh
Define Trace elements for school children and adolescents? Iodine requirements peak in adolescence. Consumption of iodized salt should be ensured. Adequacy of zinc for growth i
Q. What do you undersand by pollution? The Pollution is the contamination of an ecosystem by factors that are harmful for the equilibrium of its abiotic or biotic constituents.
How Vitamins and minerals work together with nutrients in food? Vitamins and minerals work together with nutrients in food. While antioxidant vitamins E and C and beta-carotene
Which of the following serves as an actuating signal, or as part of an actuating signal, in a system with feedback? (Either positive feedback or negative feedback) A. Blood pla
What are the hormones produced by the testicles and the ovaries? The testicles make androgenic hormones, the major of them being testosterone. The ovaries make estrogen and pro
What is Trophic Levels and Food Webs? Trophic Levels and Food Webs : Energy flows and nutrients are cycled through an ecosystem via organisms that feed on one another. When c
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