Worms: Types & Features

Worms: Types & Features
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  • 0:01 Worms
  • 0:38 Segmented Worms
  • 1:23 Flatworms
  • 2:29 Round Worms
  • 3:03 Lesson Summary
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Instructor: Yuanxin (Amy) Yang Alcocer

Amy has a master's degree in secondary education and has taught math at a public charter high school.

You may not know this, but worms are everywhere. Many are so tiny that we can't see them crawling all over the place like we can earthworms. In this lesson, we'll learn about some of the different types of worms around us.

Worms

Worms. They either disgust you or intrigue you. Worms are creatures with a long body and no legs. They are simple creatures. Some, like the earthworm, play a very important role in our ecosystem. Without the earthworm, we wouldn't have nutritious soil for our plants to grow in. Without nutritious soil, we wouldn't have nutritious food. So, it's actually thanks to the earthworm that we have healthy plants that produce yummy food for us. But did you know that there are other types of worms out there? In this lesson, we'll look at a few of the different types of worms out there.

Segmented Worms

This is a picture of earthworms.

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This is what they look like when they're all burrowed inside some soil. You probably see them right after the rain when they come out for air. That is when you'll see them out on the sidewalks and not burrowed in the soil like this. When it's not raining, this is where they are.

Earthworms are an example of segmented worms. A segmented worm, as its name suggests, is a worm with segments throughout its body. If you look closely at an earthworm, you will see its segments. Other segmented worms include the leech, the bristle worm and the tube worm. They all have segments making up their bodies. An interesting fact about segmented worms is that each segment has its own set of body parts.

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