Question

Millipede and centipede belongs to
(a)Myriapoda
(b)Crustacea
(c)Insecta
(d)Arachnida

Answer 1

Hint: Millipede and centipede belong to a subphylum of Arthropoda which is the largest phylum of the animal kingdom. The members of this phylum are characterized by the presence of jointed legs. Other features include a body divided into head, thorax, and abdomen, and a chitinous exoskeleton.

Complete answer:
Millipede and centipede belong to Myriapoda which is a subphylum of Arthropoda and contains over 16,000 species which are mostly terrestrial. Although the name myriad means having 10,000 legs, the members of this group have a range starting from fewer than 10 legs up to 750 legs. The body of myriapods is triploblastic with a true coelom. The cavity of their body is filled with a fluid known as hemolymph as it has an open circulatory system.

Additional Information: Let us know more about millipedes and centipedes.
-Millipedes belong to the class Diplopoda whereas centipedes belong to the class Chilopoda.
-They both have one pair of antennae for sensory reception and little holes known as spiracles to help with respiration.
-These organisms grow by molting which is the shedding of their external skeletons.
-Millipedes have multiple segments on their body in the range of 10,000 and each segment has two pairs of short legs present.
-Whereas centipedes only have one pair of legs on each segment and the number of segments in the body can be up to 8000.
So, the correct option is ‘Myriapoda’.

Note: -The second-largest phylum of the animal kingdom is Mollusca.
-Excretion in arthropods occurs with the help of Malpighian tubules.
-Other examples of arthropods include Apis (honey bee), Bombyx (silkworm), Locusta (locusts), Limulus (king crab).