Oligochaete

High school (ages 12+)
Animals & Nature

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/oligochaete

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Clitellata
2. What is the diet?Detritivore, feeding on decaying organic matter, microbial communities, and sediment particles
3. What are oligochaetes and why are they called wiggly worms?Oligochaetes are segmented worms that have a special saddle‑shaped part called a clitellum. They wiggle through soil and water using their body segments and tiny bristles, which is why they’re called wiggly worms.
4. How do oligochaetes help the soil?They dig tunnels that let water soak into the ground and keep the soil from running off. Their burrows also mix the soil, making it softer and better for plant roots and microbes.

Bioturbation: The disturbance of sedimentary deposits or soil by living organisms, significantly altering physical and chemical properties.
Ecosystem Engineers: Organisms that create, modify, or maintain habitats, thereby influencing the availability of resources for other species.
Vermicomposting: The process of using earthworms to decompose organic waste materials into a nutrient-rich soil amendment.