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The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.
Example: Nereis, Pheretima and Hirudinaria. Body
Symmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.
Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.
Q. Earthworms have how many segments?
- a)85-400
- b)100-200
- c)20-95
- d)115-120
Correct answer is option 'D'. Can you explain this answer?
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The members of phylum Annelida are known as “the segmented worms”. Th...
These segments are similar and called as metameres or somiles.
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The members of phylum Annelida are known as “the segmented worms”. Th...
Earthworms have how many segments?
Earthworms, which belong to the phylum Annelida, are known as "the segmented worms" due to their metamerically segmented body. These organisms exhibit a high degree of segmentation, with their body consisting of numerous segments called somites or metameres. Each somite is separated from the adjacent ones by ring-like grooves known as annuli.
The number of segments in an earthworm can vary depending on the species, but the average number of segments is around 115-120. Therefore, the correct answer is option D) 115-120.
Body Symmetry
The body of annelids, including earthworms, exhibits bilateral symmetry. This means that their body can be divided into two equal halves by a single plane passing through the midline.
Mode of Respiration
Respiration in annelids, including earthworms, primarily occurs through the skin. Earthworms have a moist, thin, and permeable body surface that allows for the exchange of gases with the surrounding environment.
In some annelids, including certain species of earthworms, specialized structures called gills are present. These gills are thin and filamentous projections that increase the surface area available for gas exchange. The gills are typically located in the anterior region of the body and help in facilitating respiration in aquatic or moist environments.
In conclusion, earthworms have approximately 115-120 segments. They exhibit bilateral symmetry and primarily respire through their skin, although some species may possess gills for respiration in aquatic or moist habitats.
Earthworms, which belong to the phylum Annelida, are known as "the segmented worms" due to their metamerically segmented body. These organisms exhibit a high degree of segmentation, with their body consisting of numerous segments called somites or metameres. Each somite is separated from the adjacent ones by ring-like grooves known as annuli.
The number of segments in an earthworm can vary depending on the species, but the average number of segments is around 115-120. Therefore, the correct answer is option D) 115-120.
Body Symmetry
The body of annelids, including earthworms, exhibits bilateral symmetry. This means that their body can be divided into two equal halves by a single plane passing through the midline.
Mode of Respiration
Respiration in annelids, including earthworms, primarily occurs through the skin. Earthworms have a moist, thin, and permeable body surface that allows for the exchange of gases with the surrounding environment.
In some annelids, including certain species of earthworms, specialized structures called gills are present. These gills are thin and filamentous projections that increase the surface area available for gas exchange. The gills are typically located in the anterior region of the body and help in facilitating respiration in aquatic or moist environments.
In conclusion, earthworms have approximately 115-120 segments. They exhibit bilateral symmetry and primarily respire through their skin, although some species may possess gills for respiration in aquatic or moist habitats.
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The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer?
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The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer?.
The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer?.
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The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer?, a detailed solution for The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The members of phylum Annelida are known as “the segmented worms”. Their body is metamerically segmented. They are triploblastic and coelomate animals. The excretory units of these invertebrates are coiled tubules, the nephridia. They help in osmoregulation.Example: Nereis, Pheretima and Hirudinaria. BodySymmetry: Segmented worms have the typical metameric segmentation. Their body consists of segments called somites or metameres and ring like grooves known as annuli. They have bilateral symmetry.Mode of Respiration: Respiration in annelids occurs through the skin. In some, gills are present.Q. Earthworms have how many segments?a)85-400b)100-200c)20-95d)115-120Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice NEET tests.
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