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Gli insetti o entomi ( Insecta Linneo, 1758) sono una classe di animali appartenenti al grande phylum degli Arthropoda. Questa classe rappresenta il più grande tra i raggruppamenti di animali che popolano la Terra, annoverando oltre un milione di specie, pari ai cinque sesti dell'intero regno animale .
Insect. For other uses, see Insect (disambiguation). Insects live in a world of motion. This leaf-footed bug climbs wind blown grass and flies off. Insects (from Latin insectum) are hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum.
Gli isotteri o tèrmiti ( Isoptera Brullé, 1832) (dal greco iso, "uguale", e ptera, "ali") sono un ordine di insetti terrestri, sociali, di piccole o medie dimensioni [1], noti allo stato fossile già nel Terziario . Indice. 1Presentazione. 2Tassonomia. 3Morfologia e anatomia. 3.1Morfologia. 3.2Anatomia. 4Polimorfismi funzionali.
Insects are the largest group of animals on Earth by far: about 926,400 different species have been described. [3] They are more than half of all known living species. [4] [4] [5] [6] [7] They may be over 90% of animal species on Earth. [8] New species of insects are continually being found. [9]
Insect evolution is characterized by rapid adaptation due to selective pressures exerted by the environment and furthered by high fecundity. It appears that rapid radiations and the appearance of new species, a process that continues to this day, result in insects filling all available environmental niches.
Insect morphology is the study and description of the physical form of insects. The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history.
3 mag 2024 · insect, (class Insecta or Hexapoda), any member of the largest class of the phylum Arthropoda, which is itself the largest of the animal phyla. Insects have segmented bodies, jointed legs, and external skeletons ( exoskeletons ).
