What is mean by annelida?

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">Annelidans are the organisms belonging to Phylum Annelida under the category of invertebrates which do not possess vertebral column. These are the organsims which possess characteristics belonging to Phylum Annelida.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*Annelidans are aquatic or terrestrial, free living or parasitic in nature.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*Annelidans are bilaterally symmetrical, triploblastic, schizocoelomates with segmented body.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*They exhibit organ-system level of organization.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*Locomotion is by longitudinal muscles, circular muscles and setae.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*Closed type of circulatory system is seen.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*Nephridia help in osmoregulation and excretion.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*Nervous system comprises of nerve ganglia connected to nervecords.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*Annelids are both dioeciousand moneciousexhibiting sexual reproduction.</font></font></font></font>

<font face="Times New Roman, serif"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;"><font size="3"><font style="box-sizing: inherit; outline: none; max-width: 100%; overflow: hidden;">*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</font></font></font></font>