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Q. Explain Rodent Control and pests?
In any food establishment, varieties of insects, pests and rodents pose a big threat to the maintenance of hygienic surroundings. They contaminate food with hair, fur, droppings, eggs and dead bodies, as you have already learnt earlier. They can also czuse considerable damage to food stocks and premises. The common pests found in food processing and food service establishments include tvvo groups of insects, the flies and cockroaches, which are the important carriers of food borne diseases. Flies feed indiscriminately on waste matter, animal wastes and on food from kitchens. The housefly may successively visit a dirty cup, clean glass, a waste material and a dish containing cooked food. The flies leave an invisible trail of bacterial and other disease causing germs. Remember, housefly can spread typhoid, dysentry and diarrhoea. They may also have a part in spreading cholera and many other diseases.
Excretion in Protozoans Excretion of metabolic wastes is dope almost exclusively by diffusion. All protozoans are ammonotelic i.e., the end product of their nitrogen metabolis
In 1809, Maggiolo described a process of fabricating and inserting gold roots into freshly extracted sockets. The implant was constructed from the three pieces of gold which were s
Vitamin C (Ascorbic acid) Vitamin C, ascorbic acid is also called anti-scorbutic vitamin. Ascorbic acid occurs as white crystals or white crystalline powder without odour and o
Soil-Environmental Components The word soil is derived from Latin word 'solum' meaning earthy material in which plants grow. The soil is the consolidated outer layer of the ear
Q. Explain about Genetic Diversity? Genetic diversity is the "fundamental currency of diversity" that is responsible for variation. This is the diversity of basic units of here
Natural versus Artificial (Man-made) Environment The environments discussed so far are, natural environments. In several instances man has greatly altered the natural condition
Q. Fish identity card. How are fishes characterized according to examples of representing beings, skin, basic morphology, circulation, nitrogen waste, respiration, thermal control
What are some examples of biological activities in which osmosis plays an important role? Hemolysis (destruction of red blood cells) by entrance of water, the hydric regulation
What are the parts of a surgical needle. How do you classify surgical needles The surgical needle is comprised of 3 parts: the needle point, the needle body, and the swaged (pr
The major ecological imbalance on Earth is between the human species and the rest of Earth's biota. What are two specific actions we could do to achieve a balance (for example, rec
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