Insects (from Latin insectum) are 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 a pair of antennae.

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).

Insects (class Insecta) have segmented bodies, jointed legs, and external skeletons.

There are over 1 million identified species of insects and spiders in the world with many more still awaiting discovery. Insects provide a vastly overlooked - and often times misunderstood - …

Oct 16, 2019 · Discover the characteristics of insects, their life-cycles, the roles they play in their ecosystems, and why they are so important for life on Earth… What Is An Insect? How Do …

Insects are vital to every ecosystem. They pollinate plants, decompose plant and animal matter, and are themselves a source of food. Birds alone are estimated to eat 400 to 500 million...

Mar 11, 2025 · What is an insect with examples, classification, characteristics, & body parts. Do they have brains, hearts, lungs, or blood. What do they eat. How do they breathe.

The body of an insect has three main parts: a head, a thorax, and an abdomen. On the head are an insect's compound eyes, its two antennae (they feel and smell things), and its mouth.

4 days ago · What is an Insect? An insect is described as an air-breathing animal with a hard-jointed exoskeleton and (in the adult) a body divided into three parts: The insect head with one pair of antennae. The insect thorax carries three pairs of legs and usually two pairs of wings. The insect abdomen contains the guts and reproductive organs. Insect ...

More than half of all the animal species described by science are insects, and it is estimated that there are more than five million extant species. That’s a lot of beetles, butterflies, moths, ants, bees, wasps, flies, termites, crickets, grasshoppers, cockroaches, mantids, dragonflies and earwigs, to name just some of the more familiar ones.