The annelids also known as the ringed worms or segmented worms, are a large
phylum, with over 17,000 extant species including ragworms, earthworms, and ...
May 2016 - Roundworms probably evolved into segmented worms, or annelids,
about 545 million years ago. The earliest annelids all lived in the ocean, as most
Segmented worms are bilaterally symmetrical invertebrates that include more
than 12000 species such as earthworms, ragworms and leeches.
Segmented worms (phylum Annelida) are so named because of their elongated,
more or less cylindrical bodies divided by grooves into a series of ringlike ...
Annelida is a group commonly referred to as segmented worms, and they are
found worldwide from the deepest marine sediments to the soils in our city parks
Scientists have classified worms into more than 15 phyla. The phylum Annelida
contains the segmented worms. Annelida is further divided into three ...
Annelids - Worms with Segments. Ooooh. Worms. Walk around school after a
rainstorm and you will have seen annelids. Earthworms are the classic example
Segmented Worms. Characteristics. - Segmentation. - Chaetae (Hairs made of
Chitin. - 3 Cell Layers. - True Coelom. - Head develops first (Protostomal).
Segmented worms, or annelids, contain the most familiar types of worm: the
earthworms found in garden soil and the ragworms and lugworms dug up on
Segmented worms make up the Phylum Annelida. The phylum includes
earthworms and their relatives, leeches, and a large number of mostly marine