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Questions and Answers
What is the main characteristic of the body of Annelida?
What is the main characteristic of the body of Annelida?
- It is spherical and segmented
- It is flat and bilateral
- It is elongated, soft and divided into ring-like segments (correct)
- It is elongated and hard
How do Annelida breathe?
How do Annelida breathe?
- Through gills
- Through tracheae
- Through lungs
- Through the moist body wall (correct)
What type of digestive system do Annelida have?
What type of digestive system do Annelida have?
- Complex
- Simple
- Complete (correct)
- Incomplete
What is the function of nephridia in Annelida?
What is the function of nephridia in Annelida?
Where do some Annelida live?
Where do some Annelida live?
Which of the following is NOT a characteristic of Annelida?
Which of the following is NOT a characteristic of Annelida?
What is the primary purpose of the ring-like segments in Annelida?
What is the primary purpose of the ring-like segments in Annelida?
What is the main advantage of having a body cavity in Annelida?
What is the main advantage of having a body cavity in Annelida?
Why are some Annelida parasitic, like leeches?
Why are some Annelida parasitic, like leeches?
What is the main difference between Annelida and other phyla that also have a segmented body?
What is the main difference between Annelida and other phyla that also have a segmented body?
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Study Notes
Annelida (Segmented Worms)
- Annelids are mostly aquatic, but some species live in moist soil, and a few are parasitic, such as leeches.
Body Structure
- Annelids have an elongated, soft body divided into ring-like segments.
Digestive System
- The digestive system is complete, extending straight from the mouth to the anus.
Respiration
- Annelids breathe through their moist body wall.
Body Cavity
- A body cavity is present in Annelids.
Excretory System
- Annelids have special organs for excretion called nephridia.
Examples
- Earthworms (Fi) are an example of Annelids.
Annelida (Segmented Worms)
- Annelids are mostly aquatic, but some species live in moist soil, and a few are parasitic, such as leeches.
Body Structure
- Annelids have an elongated, soft body divided into ring-like segments.
Digestive System
- The digestive system is complete, extending straight from the mouth to the anus.
Respiration
- Annelids breathe through their moist body wall.
Body Cavity
- A body cavity is present in Annelids.
Excretory System
- Annelids have special organs for excretion called nephridia.
Examples
- Earthworms (Fi) are an example of Annelids.
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