Question

what is the difference between annelida and arthropoda

Answer 1

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Respiration occurs through tracheae or book lungs, e.g. prawn, cockroach.Annelida and Arthropoda are two phyla of the kingdom Animalia. ... The main difference between Annelid andArthropoda is that Annelida consists of a hydrostatic skeleton whereasArthropoda consists of an exoskeleton made up of chitin.

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Answer 2

Annelida and Arthropoda belong to KingdomAnimalia . 

ANNELIDA Annelidans are aquatic or terrestrial, free living or parasitic in nature.
 *Annelidans are bilaterally symmetrical, triploblastic, schizocoelomates with segmented body.
 *They exhibit organ-system level of organization. 
*Locomotion is by longitudinal muscles, circular muscles and setae. 
*Closed type of circulatory system is seen.
*Nephridia help in osmoregulation and excretion. 
*Nervous system comprises of nerve ganglia connected to nervecords. 
*Annelids are both dioeciousand moneciousexhibiting sexual reproduction.
 *Annelida gets its name from the Latin word “anellus,” which means "little ring". Annelids are characterised by the presence of a circulatory system.e.g.
Earthworm.

ARTHROPODA Arthropoda are bilaterally symmetrical, triploblastic animals with true coelom. 
*These are segemented organisms with organ system level of organisation.
*Presence of jointed appendages and chitinousexoskeleton.
*Arthropods respire through different structureslike gills, book gills, book lungs and trachea.
 *They possess open circulatory sytem. Malpighian tubules help in excretion.
*Sensory structures are present.*Sexes are separate. Fertilisation is internal. Mostly oviparous with direct or indirect development.
  *This phylum gets its name from the Greek words arthron, meaning “joint”, and podos, meaning “foot”.e.g. Insects.

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