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Animals, not having coelom, are called acoelomate animals. Which of the following are acoelomate animals?
- a)Flatworms
- b)Echinoderms
- c)Roundworms
- d)Chordates
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Animals, not having coelom, are called acoelomate animals. Which of t...
Flatworms are acoelomate animals
Flatworms, also known as Platyhelminthes, are acoelomate animals because they lack a true coelom, which is a body cavity lined with mesoderm. This means that their body cavity is not fully lined with mesoderm tissue like in other animals.
Explanation:
- Flatworms: Flatworms such as tapeworms and planarians are examples of acoelomate animals. They have a solid body without a fluid-filled cavity between the gut and body wall.
- Echinoderms: Echinoderms, including starfish and sea urchins, are not acoelomate animals. They have a coelom and a well-developed body cavity.
- Roundworms: Roundworms, also known as nematodes, are pseudocoelomate animals. They have a body cavity that is not fully lined with mesoderm, but it is present.
- Chordates: Chordates, which include vertebrates like fish, amphibians, birds, and mammals, are eucoelomate animals. They have a true coelom lined with mesoderm.
In conclusion, flatworms are acoelomate animals as they lack a true coelom, making them distinct from echinoderms, roundworms, and chordates.
Flatworms, also known as Platyhelminthes, are acoelomate animals because they lack a true coelom, which is a body cavity lined with mesoderm. This means that their body cavity is not fully lined with mesoderm tissue like in other animals.
Explanation:
- Flatworms: Flatworms such as tapeworms and planarians are examples of acoelomate animals. They have a solid body without a fluid-filled cavity between the gut and body wall.
- Echinoderms: Echinoderms, including starfish and sea urchins, are not acoelomate animals. They have a coelom and a well-developed body cavity.
- Roundworms: Roundworms, also known as nematodes, are pseudocoelomate animals. They have a body cavity that is not fully lined with mesoderm, but it is present.
- Chordates: Chordates, which include vertebrates like fish, amphibians, birds, and mammals, are eucoelomate animals. They have a true coelom lined with mesoderm.
In conclusion, flatworms are acoelomate animals as they lack a true coelom, making them distinct from echinoderms, roundworms, and chordates.
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Animals, not having coelom, are called acoelomate animals. Which of t...
This is the correct option. Flatworms are acoelomate animals. They do not have coelom. The space between body wall and digestive tract is filled with a special type of connective tissue due to which there is no body cavity.
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Animals, not having coelom, are called acoelomate animals. Which of the following are acoelomate animals?a)Flatwormsb)Echinodermsc)Roundwormsd)ChordatesCorrect answer is option 'A'. Can you explain this answer?
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