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Q. What is biological control?
The Biological control is a natural method to control the size of microorganism, animal or plant populations. The Biological control is based on the knowledge of inharmonious (negative) ecological interactions between species. Using such knowledge a competitor, parasite or predator species is introduced in an ecosystem in order to attain reduction of the population of another species with which it has inharmonious ecological interaction. The biological control presents the benefit of substituting the use of pesticides and other toxic chemical products in the control of diseases and plagues. It though should be employed with caution under serious previous study to evade harmful ecological disequilibrium. A type of biological control of several species can be done by the introduction of previously sterilized males that do not generate offspring.
Q. Inhibition of microorganisms in food? Microorganisms use our food supply as a source of nutrients and energy. They increase their numbers by utilizing nutrients. This can re
Consequences of Aging It is hard to enumerate the general consequences of aging in different animals. Gradual loss of reproductive ability, neuromuscular coordination and not
The two gases making highest relative contribution to the greenhouse gases are: 1. CO2 and CH4 2. CH4 and N2O 3. CFC55 and N2O 4. CO2 and N2O CO2 and CH4
Contraceptive methods The safe and easy methods to prevent pregnancy are called contraceptive methods. i) Contraceptive methods followed by females are : 1) Use of harmon
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THEOR Y OF EPIGENESIS - It was propounded by C. F. Wolff and supported by Von Baer. According to it, the egg contains the substances which are required in the formation
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Once you have identified a few relevant mRNA species, you wish to more closely examine their messages by sequencing. You do not have the time to search the genome and isolate the D
Oxides of sulphur: It includes SO 2 , SO 3 . It is a colorless gas having sharp, pungent and suffocating odour. It is soluble in water and forms H 2 SO 4 . Sourc
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