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Measures to control malaria infection: Malaria is a communicable disease caused by the female anopheles mosquito.
a) Controlling mosquito population: Mosquito population can be controlled by two methods. One of them is the elimination of adult mosquito by spraying of insecticides.
b) Second method: To eliminate mosquito larvae. The following methods are used for this puspose.1) To prevent water stagnation in water tanks, drainage canals.
2) To avoid discarded vessels lying outside.3) To spray insecticides or light oil such as kerosene oil on stagnant water especially in drainage water.4) To grow specific varieties of fishes in stagnant water. These fishes feed on mosquito larvae. Thus the spread of malaria can be prevented.c) Protect from mosquito bites: The best method is to use mosquito nets while sleeping and by using mosquito proof nets windows and doors.
A few statements about the mechanism of evolution are made. Mark the correct statements. (i) Evolution happens at the individual level as well as population level. (ii
Name the disorder in which the immune mechanism of the body of a patient gets suppressed. Which pathogen is responsible for it? Give any two reasons of its transmission.
What is the genetic family tree? The Genetic family tree is a schematic family tree that shows the biological inheritance of some trait through successive generations. The G
Gastrulation in some Animals As mentioned before gastrulation marks the beginning of morphogenesis that is development of body form and organisation of cells in the embryo. By
Commonly adapted different disposal methods by the municipal corporations are: (a) Open dumping (b) Land filling (c) Sanitary land filling pyrolysis (d) Incine
Q. As a result of the DNA replication two DNA molecules come into existence. Why is it not correct to assert that the two "new" DNA molecules are created? What is the name given to
Question 1. Which are the 3 different processes in the formation of urine? Explain 2. Discuss resting membrane potential and nerve action potential 3. Name the chemical s
Plot the amount of DNA in the nucleus of a spermatogonia from the G1 stage prior to the first meiotic division through the completion of meiosis. Label each of the major stages of
The major hazards encountered in the biological lab work are diseases like infections and allergies which are caused by handling live animals. dissections, plant and animal tissues
Importance of Vitamin c Vitamin C is involved in redox processes in the organisms. It is possible, that vitamin C exerts its physiological function as a redox substance in com
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