Phylum arthropoda is the largest phylum, which includes the largest break of all animals. The arthropods are past times far the near successful phylum of animals, both inward multifariousness of distribution together with inward numbers of species together with individuals. They convey adapted successfully to life inward water, on nation together with inward the air.
The phylum arthropoda is divided into vi classes- trilobita (fossils), onychophora, arachnida, crustacea, myriapoda together with insecta. Centipedes together with Millipedes belong to floor Myriapoda.
Example of Centipede: Scolopendra
Example of Millipede: Julus
General Characters of Class Myriapoda
- The body is differentiated into caput together with trunk
- Body is worm similar together with segmented. Each segment possesses paired appendages(Two pairs inward Millipedes together with 1 duad inward centipedes). First duad of legs are changed to toxicant claws inward centipedes.
- Head possesses a unmarried duad of antennae, uncomplicated yep together with mandibular oral cavity parts.
- Exoskeleton may travel calcified.
- respiration is through tracheae. Excretion occurs past times agency of malpigian tubules.
- Sexes are separate. Development is direct.
Centipedes vs Millipedes
Centipedes | Millipedes |
Occurs nether bricks together with stones or inward cleft together with holes. | Occur inward damp together with shady places. |
Nocturnal, carnivorous, killing prey amongst the assistance of their toxicant claws. | Herbivorous or saprozoic (feeding on dead found matter). When disturbed, curlicue upward into a spiral. Emit a foul smelling fluid from stink glands. |
Body dorsoventrally flattened, divisible into caput together with 21 segmented trunk. | Body cylindrical, divisible into head, pectus together with abdomen. |
Head bears 1 duad long together with tapering antennae, 2 groups of minor together with uncomplicated ocelli (eyes) together with oral cavity parts. | Head bears 1 duad of curt together with guild shaped antennae, 1 duad of maxillae, 1 duad of ocelli(eyes) together with oral cavity parts. |
Only 1 duad of legs per segment. First duad of legs modified into toxicant claws. The concluding duad of legs longer than others. Legs arise laterally. | First together with a few concluding segments are without legs. One duad of legs per second, 3rd together with quaternary thoracic segments together with 2 pairs of legs per abdominal segment. Leg arise around midventral line. |
All segment single. | Thoracic segments single, abdominal segments double. First thoracic segment which is without legs, is called collum. |
No stink glands together with foul smell | Most abdominal segments contain stick glands. Their secretions are toxic to other animals. |
Inflict painful seize amongst teeth amongst toxicant claws. | May harm tender plants |
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