Insects known as animal species, amounting to the most. There are more than a million species we know. Insect body sizes ranging from small sizes of up to flea beetles the size of your palm. Insects have no bones, but a hard protective order on the outside called eksoskeleton.
All kinds of insects in general have the same body structure. Insects have three body parts: head, chest (thoracic), and stomach (abdominal). 
There are eyes in the head, jaw and sensory organs. In the chest there legs and wings. Insects have six legs and many have one or two pairs of wings. Abdomen is made up of the stomach, reproductive organs, and respiratory tract, called spirakula. Spirakula change lung function. As a result, the insect's body can not grow larger. If the body becomes bigger, the insect will die because the air can not be channeled through the body quickly.
Ants, termites and bees are social insects. They are members of a colony. Center of colony life is in a laying queen. While serving only males fertilize the new queens which fly elsewhere to establish new colonies. After mating, males will die. Social insects serve to build a complex structure of the house. Wasps made a nest of paper from plant materials in the chew. Honey bees build nests made of geometric cells of wax. While ants and termites make their nests from the ground.
Generally insects have two pairs of wings, except the worker ants and fleas. Beetles have wings, but not visible. Front wings transformed into the hard shell covering a soft rear wing, which used to fly.
Several kinds of insects, such as the African desert locust, is a very harmful pests. Locust invasion can damage the mob big fields within just a few hours. However, many types of insects that are beneficial to humans. Without the bees and other flying insects, pollination is unlikely to flower and produce fruit trees difficult.
The world record-breaking insect has exceptional. The sound of crickets can be heard at 500meter. Queen termite can live up to people's age, ie up to 50 years. Many species of insects can lift or drag objects that weigh 20 times their own weight. The largest insect is a winged butterflies Queen Alexandra bird measuring 20 inches stretched.