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WHO ARE THE INSECTS?

Insects appeared on earth very long time and for such a long time was divided into many types. The insect creatures small and very well adapt to any environment. They ingeniously protected and have a very complex system of reproduction.

Scientists entomologists established to identify insects by two signs:

1. The body of the insect consists of 3 sections: head, thorax, abdomen.

2. On the head it has a pair of antennae and compound eyes. On the chest there are often 3 pairs of legs and 2 pairs of wings.

However, there are insects that have only 1 pair of wings, like flies and mosquitoes. Some, like lice and fleas, wings gradually died away.

The word "insect" comes from the word "notch", i.e. it indicates that insects are separated by notches.

Insects are arthropods. Arthropods are the largest type of the animal Kingdom, which combines insects, crustaceans and arachnids. Arthropods have an external skeleton. It covers the body, like armor, but consists of individual rigid segments. Segments movably connected to each other, as the armor knight.

 


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Total votes: 205

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Anonymous
2014-02-24 17:28:24
I 3 set for such reply said I said just a little while, told word for word as here girl you better right to teach AND the LIPA WEBSITE
Tanya
2014-02-24 17:25:54
Yes Kate I agree with you completely this is not enough and you start correctly about the system it was also possible to describe their nature is well for example I'd thee on biology for 5 delivered!!))
katerinka
2014-02-24 17:21:36
for oral answer on the biology of this little we have a girl in the class has learned this and spoke to the class teacher so she put two for the incompleteness of the story
and how about the fact that the circulatory system is not sanctura consists of nadglotochnogo and poggiotondo rings, what nervous system nodal excretory consists of malpighian vessels and the organs of these on the head there are 5 pairs of walking legs, the eyes are compound and consist of thousands of other small eyes so for example dragonflies are very difficult to catch so info here are a few I even horodiste know how much and she Olesnica round was
Asian
2014-02-09 18:11:01
ugas
Pasha
2014-01-19 09:48:53
Normal helped with biology
George
2013-10-08 07:37:10
superka
Vanya
2013-05-15 18:21:48
Just fine!
Alinka
2013-02-12 18:27:42
super no words
Diana
2013-02-05 22:00:55
it is clear I his sister half hour obecna and as I read it I immediately realized
Argena
2011-12-26 04:44:27
Very clearly written,but would like to be continued))

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