Life on earth is a history of interactions between living things and their environment. Nature has taught us several events in the changes in physical form and habits of living things formed by their environment. The population of living things is very important in the ecosystem. Insect populations can act as pollinators on plants. In agricultural land can not be separated from insects. Insects are one component of biodiversity.

Insect Organ System

Organ System - Respiratory system, Respiratory organs in the form of aspiration tracheas located on either side of each segment, some of the larvae breathe with the tracheal gills on their stomachs.

Food digestive system.

Food digestive system in several types of insects occurs in the mouth, esophagus, front stomach, stomach muscles, stomach glands, intestines and anus (rectum). Food is digested mechanically in the stomach muscles and chemically in the stomach glands.

Bloodstream system.

Type of circulatory system is open (lakunair), has no veins (veins). Blood does not contain hemoglobin (Hb) so it does not carry oxygen or carbon dioxide but only functions to transport food.

Nervous system.

The nervous system is called a rope ladder with a stimulus recipient in the form of:
a. facet (compound)
b. antena.
c. sound making equipment (for example in Orthoptera and Hemiptera) and hearing aids.
d. a device that gives rise to light

Nervous system. The nervous system is called a rope ladder with a stimulus recipient in the form of: a. facet (compound) b. antenac. sound making equipment (for example in Orthoptera and Hemiptera) and hearing aids. d. a device that gives rise to light (fireflies). Excretion system. Expenditures of waste products through Malpighi vessels.

Reproduction system.

Insects sometimes experience parthenogenesis or pedogenesis. Parthenogenesis is the development of an embryo without being fertilized by spermatozoid, for example bees. While paedogenesis is parthenogenesis that takes place in the body of larvae, for example Diptera. Internal fertilization, meaning that fertilization of spermatozoid eggs takes place in the body of the female parent.

Insecta Respiratory System

In small insects, breathing can travel without the aid of muscle contractions. But in large insects, muscle contraction is needed to keep the air supply from entering the body. The muscles of the body that contract will make the air pockets expand and deflate so that the air exchange can run smoothly. When flying, insects need more O2 than when resting, the muscles that move the wings will also make the air pockets expand and deflate to ensure the availability of air when the insects fly.

Insecta Digestive System

The digestive tract in insects is divided into three main parts namely: the front digestive tract (Stomodeum), the middle digestive tract (Mesenteron), the rear digestive tract (Proctodeum). The digestive tracts come from different derivatives.

The front and back digestive tracts come from ectodermal tissue and the middle digestive tract comes from endodermal tissue. The shape of the digestive tract is influenced by the way of eating and eating insects, so this will cause differences (adjustments) between the forms of digestion of insects.