Spiders, mites, and ticks belong to which arthropod group?

Spiders, mites, and ticks belong to which arthropod group?

• A. Arachnid
• B. Insect
• C. Crustacean
• D. Myriapod

Answer: (A)

Spiders, mites, and ticks are arachnids. This group of arthropods shares several defining traits: they have eight legs as adults, their bodies are typically divided into two main parts (a cephalothorax and an abdomen), and they lack antennae. They also use chelicerae as mouthparts. Spiders uniquely produce silk via spinnerets, while mites and ticks are usually very small parasitic arachnids. These features distinguish them from insects (which have six legs, three body segments, and often wings), crustaceans (often aquatic with two pairs of antennae and different limb structures), and myriapods (centipedes and millipedes with many legs and a long, segmented body).

Spiders, mites, and ticks are arachnids. This group of arthropods shares several defining traits: they have eight legs as adults, their bodies are typically divided into two main parts (a cephalothorax and an abdomen), and they lack antennae. They also use chelicerae as mouthparts. Spiders uniquely produce silk via spinnerets, while mites and ticks are usually very small parasitic arachnids. These features distinguish them from insects (which have six legs, three body segments, and often wings), crustaceans (often aquatic with two pairs of antennae and different limb structures), and myriapods (centipedes and millipedes with many legs and a long, segmented body).