sit between Annelida and Arthropoda
Answers
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.
I hope helps you
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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.
*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.Earthworn
ARTHROPODA Arthropoda are bilaterally symmetrical, triploblastic animals with true coelom.
*These are segemented organisms with organ system level of organisation.
*Arthropods respire through different structureslike gills, book gills, book lungs and trachea.
*They possess open circulatory sytem.
*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.
I hope helps you