HORTICULTURE

Detailed explanation-1: -The phylum Arthropoda contains a wide diversity of animals with hard exoskeletons and jointed appendages. Many familiar species belong to the phylum Arthropoda-insects, spiders, scorpions, centipedes, and millipedes on land; crabs, crayfish, shrimp, lobsters, and barnacles in water (Fig. 3.72).

Detailed explanation-2: -Most arthropod’s bodies have three sections-the head, the thorax, and the abdomen. The thorax is the part of the body between the head and the abdomen. In some species of arthropods, the head and the thorax are one section called the cephalothorax.

Detailed explanation-3: -Why is the name arthropods given? The term “arthropod” means “jointed legs”. The phylum included invertebrates with an exoskeleton and jointed legs, hence named, arthropoda.