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Explain about the Serengeti Ecosystem?
The Serengeti ecosystem, one of the most stunning biological communities in the world, was devastated by the introduction of rinderpest from central Asia in the late 19th century. The cascading influences of lowered ungulate population sizes permanently changed the vegetation structure of east Africa, and may have made conditions more suitable for the invasion of tsetse fly vectors of sleeping sickness, further modifying the biological and human communities of the region. Even though these historical effects are still not totally worked out, it is clear that rinderpest that like the related measles virus is subject to extreme "boom and bust" dynamics, could not keep itself within the diverse community of wild ungulates in the Serengeti, but instead was maintained by stable populations of domestic cattle surrounding the wild herds. Along with the development and successful deployment of rinderpest vaccine in domestic cattle, the rinderpest epidemic has been brought within control and ungulate herds have risen to near historic levels, even though some community-level influences of disease may be permanent.
Cages for keeping animals in the science room It is frequently desirable in elementary and general science to stay animals caged in the science room for short periods of observ
Q.Define Cardiac catheterization and angiography? The purpose of this unit is to give you an overview and insight into the world of Cardiac Catheterization and Angiography. Thi
Bilateral - Metazoa Bilaterally symmetrical animals have the major axis running from head (anterior) to tail (posterior). They have a ventral (lower) and dorsal (upper) surfac
Explain the Bioavailability of Vitamin E? For dietary purposes, vitamin E activity is expressed as a-tocopherol equivalents (a-TEs). One α-TE is the activity of l mg α-tocophe
Berry - Development of Seed In a berry much of the pericarp is fleshy or juicy. In tomato Lycopersicon esculentum even the placenta on which the seeds are borne is fleshy. The
How do respiratory pigments act? Respiratory pigments are oxygen-carrying molecules present in the blood. When the oxygen concentration is high, for instance, in the pulmonary
Q. Measurement and Evaluation of Food Texture? Kinesthetic characteristics deal with the sense of feel, just like the characteristics of appearance deal with the sense of sight
Evolution of Photosynthesis and Aerobic Respiration It is assumed that the earlier form of the bacteria utilised H 2 S for the preparation of food. The following reaction shows
Q. Can two normal individuals of the same species with sexual reproduction have identical karyotypes and identical genomes? And how is the human karyotype usually represented?
Q. How do antibodies work to neutralize antigens? The immunoglobulins or antibodies act to facilitate the destruction of antigens: they attract phagocytic leukocytes, they dire
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