● `color{Brown}"Segmentation"`: Their body surface is distinctly marked out into segments or `color{Violet}"metameres"`, hence they are called `color{Violet}"metamerically segmentated"`.
● `color{Brown}"Locomotion"`: They possess `color{Violet}"longitudinal and circular muscles"` which help in locomotion. Aquatic annelids like `color{Violet}"𝘕𝘦𝘳𝘦𝘪𝘴"` possess lateral appendages, `color{Violet}"parapodia"`, which help in swimming.
● `color{Brown}"Excretory System"`: `color{Violet}"Nephridia"` (sing. nephridium) help in osmoregulation and excretion.
● `color{Brown}"Circulatory System"`: A `color{Violet}"closed"` circulatory system is present.
● `color{Brown}"Neural System"`: Neural system consists of `color{Violet}"paired ganglia"` (sing. ganglion) connected by lateral nerves to a double ventral nerve cord.
● `color{Brown}"Segmentation"`: Their body surface is distinctly marked out into segments or `color{Violet}"metameres"`, hence they are called `color{Violet}"metamerically segmentated"`.
● `color{Brown}"Locomotion"`: They possess `color{Violet}"longitudinal and circular muscles"` which help in locomotion. Aquatic annelids like `color{Violet}"𝘕𝘦𝘳𝘦𝘪𝘴"` possess lateral appendages, `color{Violet}"parapodia"`, which help in swimming.
● `color{Brown}"Excretory System"`: `color{Violet}"Nephridia"` (sing. nephridium) help in osmoregulation and excretion.
● `color{Brown}"Circulatory System"`: A `color{Violet}"closed"` circulatory system is present.
● `color{Brown}"Neural System"`: Neural system consists of `color{Violet}"paired ganglia"` (sing. ganglion) connected by lateral nerves to a double ventral nerve cord.