Phylum Annelida Quiz: The Segmented Worms!

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Quizzes Created: 10 | Total Attempts: 6,804

Questions: 12 | Attempts: 1,535 | Updated: Mar 13, 2023

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Phylum Annelida Quiz: The Segmented Worms! - Quiz

Phylum Annelida: The Segmented Worms. Zoology Lab.

Questions and Answers

1.

The phylum Annelida is made up of .....
- A.
  
  Pseudocoelomates
- B.
  
  Aceolomates
- C.
  
  Eucoelomates
Correct Answer
C. Eucoelomates

Explanation
Annelida is a phylum that includes segmented worms. These worms have a true coelom, which is a fluid-filled body cavity completely lined with mesoderm. This makes them eucoelomates. Pseudocoelomates have a body cavity that is only partially lined with mesoderm, while aceolomates lack a body cavity altogether. Therefore, the correct answer is eucoelomates.

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2.

What are the repeating body segments called?

Correct Answer
Metameres

Explanation
Metameres are the repeating body segments found in certain organisms. These segments are similar in structure and function, and they often repeat along the length of the body. This repetition allows for specialization and efficiency in different body regions. Examples of organisms with metameres include annelid worms and arthropods. These segmented body plans provide flexibility and adaptability, allowing the organisms to perform a variety of different movements and functions.

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3.

In the phylum Annelida, their digestive system is complete.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Annelids belong to the phylum Annelida, which includes segmented worms like earthworms and leeches. These organisms have a complete digestive system, which means that they have a mouth for ingestion, a specialized tube-like structure for digestion and absorption of nutrients, and an anus for the elimination of waste. This allows them to efficiently process and extract nutrients from their food. Therefore, the statement that the digestive system of Annelida is complete is true.

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4.

A crop in the phylum Annelida is used for...
- A.
  
  Temporary Storage
- B.
  
  Movement
- C.
  
  Grinding
Correct Answer
A. Temporary Storage

Explanation
The crop in the phylum Annelida is used for temporary storage. The crop is a specialized organ found in some annelids, such as earthworms, and it serves as a storage chamber for food. It allows the annelid to store excess food temporarily before it is further digested and absorbed. This adaptation is particularly useful for annelids that consume large quantities of food at once or for those that have irregular feeding patterns. The crop helps ensure a steady supply of nutrients for the annelid, allowing it to survive periods of food scarcity.

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5.

The gizzard in the phylum Annelida is used for.....
- A.
  
  Temporary Storage
- B.
  
  Nothing
- C.
  
  Grinding
Correct Answer
C. Grinding

Explanation
The gizzard in the phylum Annelida is used for grinding. Annelida is a phylum that includes segmented worms, and the gizzard is a muscular organ found in their digestive system. It helps break down food particles by grinding them into smaller pieces, aiding in the digestion process. This allows the worms to extract nutrients more efficiently from their food.

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6.

The genus Nereis is found in what class?

Correct Answer
Polychaeta

Explanation
The genus Nereis is found in the class Polychaeta. Polychaeta is a class of marine worms that are characterized by their numerous bristle-like appendages called chaetae. Nereis is a genus within this class, which means that it belongs to the group of marine worms with chaetae.

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7.

The genus Lumbricus is found in what class?

Correct Answer
Oligochaeta

Explanation
The genus Lumbricus is found in the class Oligochaeta. Oligochaeta is a class of annelids that includes earthworms, and Lumbricus is a genus of earthworms. Therefore, it can be inferred that Lumbricus belongs to the class Oligochaeta.

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8.

The genus Hirudo is found in what class?

Correct Answer
Hirudinea

Explanation
The genus Hirudo belongs to the class Hirudinea.

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9.

Genus Lumbricus is found in what phylum?

Correct Answer
Annelida

Explanation
Genus Lumbricus belongs to the phylum Annelida. Annelida is a phylum that includes segmented worms, such as earthworms. The characteristics of this phylum include a segmented body, a well-developed coelom, and a closed circulatory system. Genus Lumbricus specifically refers to the earthworms, which are part of the Annelida phylum.

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10.

What genus is this species?

Correct Answer
Hirudo

Explanation
This species belongs to the genus Hirudo.

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0
11.

What genus is this species?

Correct Answer
Lumbricus

Explanation
The given species is named Lumbricus, which also happens to be the genus name. In taxonomy, the genus is a rank below family and above species. It is a way to categorize and group similar species together. Therefore, the correct answer is Lumbricus, as it is both the species name and the genus name in this case.

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1
12.

What genus is this species?

Correct Answer
Nereis

Explanation
The given species is named Nereis, which is also the genus of the species. In taxonomy, the genus is a rank in the classification system that groups closely related species together. Therefore, the correct answer is Nereis because the species belongs to the same genus.

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