Which of the following creatures is classified under Arachnida?

Spiders belong to the class Arachnida, which is characterized by having eight legs, two main body segments (the cephalothorax and abdomen), and no antennae. Arachnids also include scorpions, mites, and ticks, sharing these defining features. This classification distinguishes them from insects, such as butterflies, grasshoppers, and dragonflies, which have six legs, three body segments (head, thorax, abdomen), and a pair of antennae. Understanding the characteristics of different classes within the phylum Arthropoda is vital in distinguishing between these groups and recognizing the broader diversity of life forms.