Nemata S10 - ZOO 115 Invertebrate Zoology Phylum Nemata...

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ZOO 115 Invertebrate Zoology Phylum Nemata
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Phylum Nemata Common name: round worms >20,000 species. Mostly widespread and abundant of all metazoans 90,000 worms in a decomposing apple. Marine and freshwater benthos, soil, parasites on plants and animals hooge.developmentalbiology.com/meiofauna/media
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Phylum Nemata - Anatomy Most freeliving <2.5 mm in length. Some parasites > 50 cm in length. Body is cylindrical with a pseudocoel /creatures.ifas.ufl.edu/nematode Nerve cords Ovaries Excretory canal Digestive tract Complex cuticle Must molt (Ecdysis) Anterior end is radially symmetrical but the rest of the body has bilateral symmetry
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/creatures.ifas.ufl.edu/nematode Phylum Nemata - Head Region Nervous system /creatures.ifas.ufl.edu/nematode Brain Ring-like brain Sensilla Chemosensory Males also have them near the anus Sensilla www.unice.fr/LEML/coursJDV/images/biologie/ Sensilla www.unice.fr/LEML/coursJDV/images/biologie/ Dorsal, ventral and lateral nerve cords
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/creatures.ifas.ufl.edu/nematode
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Nemata S10 - ZOO 115 Invertebrate Zoology Phylum Nemata...

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