The spider, ticks, and mites belong to the Arthropod class

✅ Explanation: Spiders, ticks, and mites all belong to the class Arachnida within the phylum Arthropoda. Arachnids are characterized by having two body segments (cephalothorax and abdomen), four pairs of legs, and no antennae or wings.

📌 Other Options Explanations:
-Pauropoda: These are small, soft-bodied myriapods with 9-11 pairs of legs and no eyes.
-Uniramia: This subphylum includes insects, centipedes, and millipedes, characterized by having one pair of antennae and uniramous (unbranched) appendages.
-Diplopoda: This class consists of millipedes, which have two pairs of legs per body segment and are detritivores.