Millipedes fall under the following class of Arthropoda:

✅ Explanation Millipedes belong to the class Myriapoda within the phylum Arthropoda. Myriapods are characterized by having numerous body segments, each bearing one or two pairs of legs. This class also includes centipedes, another group of many-legged arthropods.

📌 Other Options Explanations:
-Insecta: This class includes insects, which have three body segments and three pairs of legs
-Crustacea: This class includes crabs, lobsters, and shrimp, which have a hard exoskeleton and two pairs of antennae.
-Arachnida: This class includes spiders, scorpions, and mites, which have two body segments and four pairs of legs.
Additional information-

• Centipede:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Chilopoda [Hundred-legged with body divisible into head and trunk.]

• Millipede:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Diplopoda [Thousand-legged with body divisible into a head, thorax, and abdomen.]

• Spider:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Arachnida [Cephalothorax with six pairs of appendages.]

• Scorpion:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Arachnida [Cephalothorax with six pairs of appendages.]​

•  ​​​House fly:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Insecta [Head bears a pair of compound eyes, a pair of antennae, and mouth parts adapted for chewing, biting, piercing sucking, etc.]

• Butterfly:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Insecta [Head bears a pair of compound eyes, a pair of antennae, and mouth parts adapted for chewing, biting, piercing, sucking, etc.]

• Tsetse fly:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Insecta [Head bears a pair of compound eyes, a pair of antennae and mouth parts adapted for chewing, biting, piercing, sucking, etc.]

• Silverfish:
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Insecta [Head bears a pair of compound eyes, a pair of antennae, and mouth parts adapted for chewing, biting, piercing, sucking, etc.] ​​Spiny anteater:​
-​PHYLUM – Chordata [Presence of dorsal tubular nerve cord, pharyngeal gill slits, and notochord at some stage of development.] -SUB-PHYLUM – Vertebrata [ Presence of vertebral column] -CLASS – Mammalia [Presence of mammary gland]

• Sea urchin:
-​PHYLUM – Echinodermata [Marine animal showing usually pentamerous radial symmetry with podia or tube feet projecting out of the body.] -CLASS – Echinoidea [Body is spherical, disc-like, oval, or heart-shaped with an endoskeleton made up of closely fitted calcareous plates with movable spines.] ​Sea cucumber:​
-​PHYLUM – Echinodermata [Marine animal showing usually pentamerous radial symmetry with podia or tube feet projecting out of the body.] -​CLASS – Holothuroidea [Endoskeleton is reduced to microscopic spicules or plates that are embedded in the body wall. Mouth surrounded by a set of tentacles.] ​​Flying fish:​
-​PHYLUM – Chordata [Presence of dorsal tubular nerve cord, pharyngeal gill slits, and notochord at some stage of development.] -SUB-PHYLUM – Vertebrata [ Presence of vertebral column] -SUPER CLASS – Pisces [Aquatic and bears fins] -CLASS – Osteichthyes [Marine or freshwater fish with bony exoskeleton.
Cuttlefish:​
-​PHYLUM – Mollusca [Body is soft, unsegmented and bilaterally symmetrical. The body consists of a head, foot, mantle, and visceral mass.] -CLASS – Cephalopoda [Shell embedded in the mantle. The foot altered into a series of tentacles encircling the mouth.] ​​​Silverfish:​
-PHYLUM – Arthropoda [Thick chitinous cuticle as an exoskeleton and jointed appendages.] -CLASS – Insecta [Head bears a pair of compound eyes, a pair of antennae and mouth parts adapted for chewing, biting, piercing, sucking,etc.