AP BIOLOGY

Detailed explanation-1: -Identification of Insects and their Relatives: Insects are part of the phylum of animals called Arthropoda. All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages.

Detailed explanation-2: -The exoskeleton is composed of a thin, outer protein layer, the epicuticle, and a thick, inner, chitin–protein layer, the procuticle. In most terrestrial arthropods, such as insects and spiders, the epicuticle contains waxes that aid in reducing evaporative water loss.

Detailed explanation-3: -Arthropods are characterized by a segmented body, a hard exoskeleton, and appendages used for feeding, sensory structures, defense, and locomotion.

Detailed explanation-4: -All arthropods have a hard exoskeleton made of chiton, a type of protein. This shell provides protection for the animals, and gives support for the attachment of the arthropod’s muscles. Although arthropods grow, their exoskeletons do not grow with them.

Detailed explanation-5: -The important characteristics of arthropoda include: They possess an exoskeleton. They have jointed appendages.