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Transcript of MICROORGANISMS
There are three different microbes : Fungi , bacteria and virus. As well as them being harmful they could also be helpful in food such as : yogurt , mostly cheese (blue cheese) and much more dairy products.
Harmful microorganisms cause diseases which are normally called germs. Some diseases like chickenpox are caused by viruses. Usually diseases caused by viruses spread easily which means some one else catches the germ.
Fungi is every where in the world including on land , in water, in air and in plants and animals. They are the biggest organisms on earth. There are 100000 different species of Fungi.
Viruses are small and light weighted so they can float in the air and survive on our skins. Viruses can be passed on to one person to another by shaking hands , touching the same thing and through air when a person coughs or sneezes.
Bacteria are single-celled microorganisms. They come in all sorts of different shapes including rods , spirals and spheres. Some bacterias swim around using long tails called flagella others just hang out or glide along.
Microorganisms are miniature living things that we can't see unless you use a microscope. Microorganisms are every where all over our bodies , in water and in the air.
Raw food (especially meat) can have bacteria.Bacteria can be killed when the food is cooked properly , a few may remain which can make you very ill.
Most mushrooms are good to eat and are used in our food but others are very poisonous . If you ever see a mushroom in the woods or in the forest do not eat them! because they may be the poisonous ones.
Most viruses are so small they can't be seen with an optical microscope. The first human virus discovered was the yellow fever virus in 1901 by Walter Reed. Viruses can sometimes kill and attack bacteria.
Most bacterias are not harmful, but some are and can make us sick. Fortunately , we have antibiotics which help to fight of the bad bugs or germs away. Bactria play an important role in the planet's ecosystem as well as human survival.
Thanks for listening I hope you learned something in this prezi.