Insect.

in LAKSHMI6 months ago

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Hello friends Lakshmi..

Insects are a class of invertebrates in the phylum arthropods that have chitinous exoskeletons. Its body is divided into three parts, namely the head, thorax and abdomen. It also has three pairs of legs connected to the thorax, has compound eyes and a pair of antennae.

Insects are also called insecta, read insecta, which comes from the Latin insectum, a loan word from the Greek evrouv (entomon), which means cut into several parts. They are one of the classes of invertebrates in the phylum arthropods that have chitinous exoskeletons.

Insects are one of the most diverse groups of animals, encompassing more than one million species and representing more than half of all known living organisms. The number of extant species is estimated to be between six and ten million and potentially represents more than 90% of the diverse animal life forms on earth.

Insects can be found in almost any environment, although only a small number live in the ocean, a habitat dominated by another group of arthropods, the crustaceans. The study of the life of insects is called entomology. Insects belong to the insect class (subphylum uniramia) which is further divided into 29 orders, including Diptera (for example flies), Coleoptera (for example beetles), Hymenoptera (for example ants, bees and wasps) and lepidoptera (for example butterflies and moths).

The Apterygota group consists of 4 orders because all adult insects do not have wings and 25 other orders are included in the Pterygota group because they have wings. Insects are content animals with a very high level of adaptation. Insects are relatively small in size and were the first to successfully colonize the earth. The circulatory structure of insects is an open circulatory system and all insects lay eggs (oviparous).

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