Concept

Segmentation

Images

  • Somites in the chick embryo
  • Ragworms are segmented worms with long, flattened bodies, consisting of many segments. Each segment has a pair of parapods, or swimming legs. At the head end (shown in ths image) they have a toothed proboscis, four eyes, and two pairs of antennae. Ragworms are found predominantly in muddy shorelines and often used as fishing bait. They can live up to 3 years. Some species are considered an active predator, sifting through the mud and sand for small ocean creatures, others exist as scavengers.
  • Ragworms are segmented worms with long, flattened bodies, consisting of many segments. Each segment has a pair of parapods, or swimming legs. These parapods are covered with bristles called chaete and are used for crawling and swimming, these structures are clearly shown in this image. Ragworms are found predominantly in muddy shorelines and often used as fishing bait. They can live up to 3 years. Some species are considered an active predator, sifting through the mud and sand for small ocean creatures, others exist as scavengers.
  • Neural tube and somites
  • Ragworms are segmented worms with long, flattened bodies, consisting of many segments. Each segment has a pair of parapods, or swimming legs. At the head end (shown in ths image) they have a toothed proboscis, four eyes, and two pairs of antennae. Ragworms are found predominantly in muddy shorelines and often used as fishing bait. They can live up to 3 years. Some species are considered an active predator, sifting through the mud and sand for small ocean creatures, others exist as scavengers.
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Catalogue

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