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Annelids - Contenido educativo
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Descripción de los anélidos en inglés. Descargado de https://www.youtube.com/watch?v=3uxHkGreFU4
Welcome to MooMooMath and Science.
00:00:00
In this video I would like to talk about the phylum Annelida.
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The phylum Annelida are made up of worms in which the bodies are made up of a series of
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identical segments that runs from their head to their tails.
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Some common examples include the earthworm, leeches, clamworm, and fireworms.
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Here are a couple more characteristics of these worms
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They have bilateral symmetry
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They also include tissues and organs
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They have a fluid filled internal cavity
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Their body possesses a digestive system with a mouth and an anus
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They have a nervous system with a ventral nerve cord
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They have a closed circulatory system They do not have respiratory organs
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They reproduce sexually and some are hermaphrodites
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Probably the most common analid is the earthworm.
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There are more than 27,000 kinds of earthworms.
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They range from a half inch in length to the largest recorded earthworm ever was 22 feet.
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Earthworms exist in great numbers and it is estimated that in a single acre of soil there
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There may be up to a million earthworms.
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- Idioma/s:
- Idioma/s subtítulos:
- Autor/es:
- MooMooMath and Science
- Subido por:
- Andrés G.
- Licencia:
- Reconocimiento - No comercial - Compartir igual
- Visualizaciones:
- 76
- Fecha:
- 5 de noviembre de 2020 - 16:59
- Visibilidad:
- Público
- Enlace Relacionado:
- https://www.youtube.com/watch?v=3uxHkGreFU4
- Centro:
- IES AGORA
- Duración:
- 02′ 04″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1280x720 píxeles
- Tamaño:
- 3.37 MBytes