its a band of thickened, specialized segments in annelids that secrets a mucus ring into which eggs and sperm are released
Mucous and reproduction
It is the band aid looking patch on a worm that holds its sex organs. this is only in a worm, we, humans do not have citellum. It is a saddle-like or ring-like girdle or 'cocoon' on a worm in which the eggs and sperm are deposited for fertilization and development.
the earth worm and the red worm.
an earth worm is longer and has more sections of the body in comparisence to a roundworm.
earth worms
An earth worm is plump and long. A round worm is long and slender almost like a hair.
beetle + work = ant
The typhosole of an earth worm is the mid-dorsal groove of the intestine. It is folded and functions to increase the surface area of the intestine to aid in digestion.
The scientific name for a true worm is "Annelida". Annelids are a diverse group of segmented worms that includes earthworms, marine worms, and leeches.
Life and Earth is worm
worm of land/ earth worm
Because earth worm is not die when earth worm is in the water.
earth worm ring worm Alaskan bull worm