It's natural to consider the housefly a nuisance. lt makes an irritating buzzing sound;
it annoys you when it crawls on our skin, and so on. Besides, housefly is dangerous to
people. lt was discovered that these flies carried disease germs that cause the death of
millions of people every year!
When you see a fly rubbing its legs together, it is just cleaning itself and scraping off
some of the material that has gathered there. That material may be very dangerous. lt may
be the bacteria of such diseases as typhoid fever, tuberculosis, or dysentery. Flies get such
germs from to touch our food, the germs spread to the food. lf we eat it, we may become
infected.
The fly carries these germs around because its whole O:Or, its claws and its feet are
covered with hairs. The fly's tongue is also coated with a sort of glue. This means that
anywhere the fly stops, it's going to pick up things that stick to its body, its feet,
or its tongue. ln fact, each foot on its three pairs of legs has claws and two hairy pads,
so it can make plenty of "pick-ups". A sticky liquid is produced by the fly's pads, and it
enables the fly to walk upside down on the ceiling.
Wilt we ever get rid of flies altogether? The only way is to prevent them from
breeding. And protecting food from flies is an important task in every kitchen.
It's natural to consider the housefly a nuisance. lt makes an irritating buzzing sound;it annoys you when it crawls on our skin, and so on. Besides, housefly is dangerous topeople. lt was discovered that these flies carried disease germs that cause the death ofmillions of people every year!When you see a fly rubbing its legs together, it is just cleaning itself and scraping offsome of the material that has gathered there. That material may be very dangerous. lt maybe the bacteria of such diseases as typhoid fever, tuberculosis, or dysentery. Flies get suchgerms from to touch our food, the germs spread to the food. lf we eat it, we may becomeinfected.The fly carries these germs around because its whole O:Or, its claws and its feet arecovered with hairs. The fly's tongue is also coated with a sort of glue. This means thatanywhere the fly stops, it's going to pick up things that stick to its body, its feet,or its tongue. ln fact, each foot on its three pairs of legs has claws and two hairy pads,so it can make plenty of "pick-ups". A sticky liquid is produced by the fly's pads, and itenables the fly to walk upside down on the ceiling.Wilt we ever get rid of flies altogether? The only way is to prevent them frombreeding. And protecting food from flies is an important task in every kitchen.
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