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Annelid

en.wikipedia.org/wiki/Annelid

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 ...

What are Segmented Worms? - Earthworms and Leeches - Quatr.us

quatr.us/biology/animals/segmentedworms/

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  ...

Biology of Animals & Plants - Segmented Worms

faculty.fmcc.suny.edu/mcdarby/animals&plantsbook/animals/06-segmented worms.htm

It is a quick and simple way to add size, and segmented worms, also known as annelids, are the prototypes. In animals that stay fully segmented, it helps make ...

Segmented Worms - Annelida - The Animal Encyclopedia

animals.about.com/od/segmentedworms/p/segmented-worms.htm

Segmented worms are bilaterally symmetrical invertebrates that include more than 12000 species such as earthworms, ragworms and leeches.

Biology4Kids.com: Invertebrates: Segmented Worms

www.biology4kids.com/files/invert_annelid.html

Annelids - Worms with Segments. Ooooh. Worms. Walk around school after a rainstorm and you will have seen annelids. Earthworms are the classic example of ...

Segmented Worms - Annelida - Overview - Encyclopedia of Life

eol.org/pages/36/overview

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  ...

BBC Nature - Segmented worms videos, news and facts

www.bbc.co.uk/nature/life/Annelid

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 muddy ...

Segmented Worms - Body, Leeches, Blood, and Called - JRank ...

science.jrank.org/pages/6062/Segmented-Worms.html

Segmented worms (phylum Annelida) are so named because of their elongated, more or less cylindrical bodies divided by grooves into a series of ringlike ...

Phylum Annelida Segmented Worms Characteristics

www.bu.edu/gk12/eric/Annelida.pdf

Segmented Worms. Characteristics. - Segmentation. - Chaetae (Hairs made of Chitin. - 3 Cell Layers. - True Coelom. - Head develops first (Protostomal).

Segmented Worms

highered.mheducation.com/sites/dl/free/0072830565/198678/ch17.pdf

Segmented Worms. Phylum Annelida. Dividing the Body. Although a fluid-filled coelom provided an efficient hydrostatic skeleton for burrowing, precise control of  ...

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Annelida - Segmented Worms | Wildlife Journal Junior

www.nhptv.org

There are about 15000 species in this phylum. The phylum includes earthworms, leeches, and marine worms known as polychaetes. Species in this order have ...

Segmented worms - BioKIDS - University of Michigan

www.biokids.umich.edu

The animals in the Annelida are segmented worms. They have no legs, and no hard skeleton. Unlike mollusks, annelid bodies are divided into many little ...

What are characteristics of segmented worms? | Reference.com

www.reference.com

Segmented worms have multiple segments that make them bilaterally symmetrical. Each segment houses an entire set of organs. Earthworms, ragworms and ...