Earthworms - University of Pennsylvania
网页Earthworms are classified in the phylum Annelida or Annelids. Annelida in Latin means, “little rings.” The body of the earthworm is segmented which looks like many little rings joined or fused together.
Earthworm - Wikipedia
网页An earthworm is a soil-dwelling terrestrial invertebrate that belongs to the phylum Annelida. The term is the common name for the largest members of the class (or subclass, depending on the author) Oligochaeta.
Earthworm | Annelid, Burrowing & Soil Fertility | Britannica
网页earthworm, any one of more than 1,800 species of terrestrial worms of the class Oligochaeta (phylum Annelida)—in particular, members of the genus Lumbricus. Seventeen native species and 13 introduced species (from Europe) occur in the eastern United States, L. terrestris being the most common.
Inside of an earthworm - Science Learning Hub
网页The earthworm’s body is well adapted for life in the soil. Click on the labels to see images and learn more. Click the green button to see what’s on the outside of an earthworm .
Earthworm - Morphology, Diagram and Anatomy of Earthworm …
网页An earthworm is a segmented worm; a terrestrial invertebrate belonging to the phylum Annelida. They are the common inhabitants of moist soil and feed on organic matter. Earthworms are commonly called as farmer’s friend. This is because the worm casting (faecal deposit) increases the fertility and burrowing helps in proper aeration of the soil.
Anatomy of Earthworm (With Diagram) | Zoology - Biology …
网页In this article we will discuss about the external and internal anatomy of earthworm. This will also help you to draw the structure and diagram of earthworm. External Anatomy of Earthworm: The body of Pheretima is nearly circular in cross-section and varies from 7 to 8 inches (18-19 cms) in length.
Earthworm - National Geographic Kids
网页Animals. Invertebrates. Earthworm. Although native to Europe, earthworms are found throughout North America and western Asia. Common Name: Common Earthworm. Scientific Name: Lumbricus...
Earthworms, Their Species, and Biological Features
网页2024年1月11日 · Earthworms, a diverse group within the annelid class Oligochaeta, exhibit a rich tapestry of species and biological features that have fascinated researchers and ecological enthusiasts alike. This chapter provides an overview of earthworm diversity, highlighting their unique biological characteristics. Earthworms encompass a …
anatomy - WormWatch
网页Basic Respiratory System. Unlike humans, earthworms do not have a well-developed respiratory system. Instead of lungs, they breathe through their skin which needs to stay moist for breathing. Closed Circulatory System. Unlike many other invertebrates, the circulatory system is fully closed.
Earthworm Biology | Earthworm Society of Britain
网页Earthworms belong to the Oligochaetes-which means 'few bristles' and are represented by 31 species of earthworm here in the British Isles. Worldwide there are over 5,000 species described and advances in taxonomy using DNA is changing this, highlighting new species and new subspecies.
- 某些结果已被删除