Nearly all insects hatch from eggs. Insect growth is constrained by the inelastic exoskeleton, so development involves a series of molts. The immature stages often differ from the adults in …

Oct 16, 2025 · 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, …

May 4, 2025 · As you may remember from elementary school, the most basic definition of an insect is an organism with three pairs of legs and three body regions: head, thorax, and …

So far scientists who study bugs, called entomologists, have named one million insect species but studies estimate that four million are still uncategorized.

In this video for Grades 3 to 5, you’ll learn about the features all insects have. You will learn to identify an insect from other arthropods.

Sep 4, 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.

In complete metamorphosis (or, holometabolous development), the insect grows up in four stages: egg, larva, pupa, and adult. A larva looks nothing like an adult.

Oct 16, 2019 · Over one million insect species have been identified – that’s over three times the number of known plant species. Over half of all known living organisms on Earth are insects.

Oct 20, 2025 · entomology, branch of zoology dealing with the scientific study of insects. The Greek word entomon, meaning “notched,” refers to the segmented body plan of the insect. …

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.