- define what Insect is a class of
When the gods gift you with the type of talent Robin had, there’s a price to pay, there always is — it doesn’t come from nothing, It comes from … probably deep problems inside, a concern, all sorts of fears, and yet he could always channel those things and turn them into something gold … I think that just comes with the territory, frankly.
Terry Gilliam on the ‘miracle of Robin Williams’, BBC News
- Insect (Wikipedia)
Insects (from Latin insectum) are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within.