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Man does not develop immunity to malaria during natural infection
Malaria is caused by several species of Plasmodium
Vaccines can be developed only against bacteria
Man is only an intermediate host and not the definitive host
Wilhelm Rontgen invented
William Frederick is credited with the invention of the modern Frisbee in the mid 1950s. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbee who was a _?
Wilting in plants occurs because of
Wood is the main raw material for the manufacture of
Wood Spirit is which of the following ?
X-rays cannot pass through
Xenobiotics which are inherently resistant to microbial attack are called as
Yeasts moulds are examples of
Zener- diode is used as :
Zinc sulphide is commonly used as