Describe the major characteristics of animals, and the body structure of insects, including their segmented bodies, three pairs of legs, two pairs of wings, and reproductive strategies.

Step 1: Major characteristics of Kingdom Animalia animals. Animals are eukaryotic and multicellular but have no cell wall or photosynthetic pigments. They are heterotrophic, which means they must eat other organisms for food. Animals cannot make their own food. They reproduce sexually or asexually. Animals store carbon as glycogen and fat. Step 2: Invertebrate major group — Phylum Arthropoda (insects). Phylum Arthropoda includes invertebrate animals. Insects have a very large segmented body. Insects live in every possible environment on Earth and are among the most highly adapted of all animal species. Step 3: Body structure of insects. Insects have three body segments with a firm exoskeleton: Head Thorax Abdomen The body is divided into these three parts: head, thorax, abdomen regions. Step 4: Legs and other features. Insects have three pairs of jointed legs (attached to thorax). No limbs on the abdominal segment. They have pairs of antennae. They undergo complete or incomplete metamorphosis. Step 5: Examples of insects (subgroups). Bees, butterflies, houseflies, grasshoppers, termites, beetles. Final answer Insects belong to Phylum Arthropoda with body parts: head, thorax, abdomen, and three pairs of legs. Head, Thorax, Abdomen; 3 pairs of legs