NEET BIOLOGY

Detailed explanation-1: -All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.

Detailed explanation-2: -Arthropods are an ecdysozoan phylum defined by their segmented bodies and jointed limbs.

Detailed explanation-3: -A segmented body plan is one in which repeated body units are arranged along the anterior–posterior axis, each unit containing elements from a number of organ systems. Segmentation is found in three phyla: the arthropods, annelids, and chordates.

Detailed explanation-4: -Arthropod segments have also fused together into functional units called tagma. This process of segment fusion, or tagmosis, usually results in an arthropod body that consists of three major sections, a head, thorax, and abdomen. Sometimes the head and thorax are fused together into a cephalothorax.

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