What are the two main parts of a spider?

Spiders are classified as arachnids, and their body structure is distinct from that of insects. The correct identification of the two main parts of a spider is the cephalothorax and abdomen.

The cephalothorax is the fused head and thorax, which houses the eyes, mouthparts, and legs. This structure serves as a central body portion that combines sensory and locomotive functions. The abdomen, on the other hand, contains the digestive and reproductive organs, as well as silk-producing glands in many species.

Understanding the anatomical differences helps in recognizing how spiders and other arachnids operate and thrive in their environments, as well as how they differ fundamentally from insects, which have a distinct head, thorax, and abdomen. Thus, the terminology and structure associated specifically with arachnids like spiders is vital in pest control and biological studies related to these creatures.