Plz define in short
Plz plz..
1 protozoa
2. Rhizobium
3 vaccine
4 yeast..
Plz help me guess
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THESE ARE SINGLE CELL MICROSCOPIC STRUCTURE . SOME OF THE PROTOZOAS ARE FREE LIVING . THEY HAVE MANY TINY HAIR LIKE STRUCTURES CALLED CILIA .
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IT IS NITROGEN FIXATION BACTERIA THAT PLAYS IMPORTANT ROLE IN NITROGEN CYCLE THAT TAKE PLACE IN NATURE. IT HELPS IN CONVERTING ATMOSPHERIC NIYROGEN IN AMMONIA THAT CAN BE USED BY THE LEGUMINOUS PLANTS FOR THEIR GROWTH AND DEVELOPMENT .
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A VACCINE IS AN ANTI GENIC SUBSTANCE THAT DEVELOPS IMMUNITY AGAINST DISEASES. IT IS INJECTED THROUGH NEEDLE INJECTIONS , BY MOUTH OR BY AEROSOL.
EDWARD JENNER IS CONSIDERED AS THE FOUNDER OF VACCINOLOGY . HE CREATED THE VACCINE FOR THE FIRST TIME FOR SMALL POX.
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YEAST IS A MICROSCOPIC STRUCTURE USED AS RAISING AGENT IN BAKING FACTORY.IT CONVERT THE FOOD SUGAR INTO CARBON DIOXIDE GAS AND BECAUSE OF THIS THE FOOD ITEMS IN WHICH IT IS ADDED IS RAISED .
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