AesthesiaMag

The extraordinary diversity of forms of insects is their striking feature. Described more 1 million species of insects.

Every year, at least 7000-7500 describes new species. Insects are very diverse, and most of their species are poorly understood, so the true estimate of the number of existing species is very difficult.

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Insect body divided into three segmented sections: head, thorax and abdomen.

The smallest insects in the world are males parasitic riders Dicopomorpha echmepterygis: their body length of about 0.139 mm.

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The largest beetles are Hercules Beetle, separate male individuals which reach a length of 171 mm.

Vision plays a big role in the lives of most insects. Features of insects caused by facet structure of the eye, which consist of a large number of ommatidia. The largest number of ommatidia found in butterflies (12-17 thousand) and dragonflies (10-28 thousand).

Compound eyes: Perception of sounds is done in insects vibroretseptorami located in the calves of the legs.

Also, the insects have developed olfactory apparatus. Odor is carried through the olfactory organs situated at the antennae.

Xem thêm : U.S. Food and Drug Administration

At the adult stage of development of insects live from several hours to decades. For example, the imago mayflies live from several hours to several days. Records in this area, as a rule, belong to the social insects, whose large nests (ant and termite mounds) can be seen live for decades. Ant uterus live up to 20 years, and the queen termites – to 25.

Food selectivity seen in insects complex and varied; they are used to power a variety of sources of organic matter: tissue of animals and plants, organisms, waste products, dead bodies and the remains of animal and vegetable origin.

Flight is one of the main modes of transportation set of insects to help them search for food, sexual partner for reproduction, to settle and migrate to escape from predators. Insects first in the world have developed the ability to fly up in the air and, being the only group invertebrate capable of this type of movement.

More than 80% of plants pollinated by insects in Europe, and we can confidently say that the flower – the result of co-evolution of plants and insects.

Due to the large number of insects and their high activity, life on Earth without these animals would have been impossible.

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