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Which one of the following statements about certain given animals is correct? [2010]
- a)Round worms (Aschelminthes) are pseudocoelomates
- b)Molluscs are acoelomates
- c)Insects are pseudocoelomates
- d)Flat worms (Platyhelminthes) are coelomates
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Which one of the following statements about certain given animals is c...
Acoelomates are animals that have no body cavity or coelom. The examples are poriferans, coelenterates, ctenophore, Platyhelminthes and nemertean. pseudocoelomates are animals that has false or pseudo coelom. Examples are aschelminthes. Coelomates are animals that has true coelom enclosed by mesoderm on both sides. Examples: from annelida to arthropoda are coelomates. Hence roundworms are pseudocoelomates, molluses and insects are coelomates while flatworms are acoelomates.
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Which one of the following statements about certain given animals is c...
**Answer:**
To determine the correct statement about the given animals, let's analyze each option:
a) **Roundworms (Aschelminthes) are pseudocoelomates:**
Roundworms, also known as nematodes, belong to the phylum Nematoda. They have a body cavity called a pseudocoelom, which is derived from the blastocoel (a fluid-filled cavity) during embryonic development. The pseudocoelom serves as a hydrostatic skeleton and is not completely lined with mesodermal tissue. Therefore, option A is correct.
b) Molluscs are acoelomates:
Molluscs belong to the phylum Mollusca, which includes animals like snails, clams, and squids. Molluscs have a true coelom, a fluid-filled body cavity completely lined with mesodermal tissue. Therefore, option B is incorrect.
c) Insects are pseudocoelomates:
Insects belong to the phylum Arthropoda. They have a true coelom, which is a body cavity completely lined with mesodermal tissue. Therefore, option C is incorrect.
d) **Flatworms (Platyhelminthes) are coelomates:**
Flatworms, such as tapeworms and planarians, belong to the phylum Platyhelminthes. They do not possess a true body cavity (coelom) at all. Instead, they have a solid mesoderm sandwiched between the ectoderm and endoderm layers. Therefore, option D is incorrect.
In conclusion, the correct statement about the given animals is option A: Roundworms (Aschelminthes) are pseudocoelomates.
To determine the correct statement about the given animals, let's analyze each option:
a) **Roundworms (Aschelminthes) are pseudocoelomates:**
Roundworms, also known as nematodes, belong to the phylum Nematoda. They have a body cavity called a pseudocoelom, which is derived from the blastocoel (a fluid-filled cavity) during embryonic development. The pseudocoelom serves as a hydrostatic skeleton and is not completely lined with mesodermal tissue. Therefore, option A is correct.
b) Molluscs are acoelomates:
Molluscs belong to the phylum Mollusca, which includes animals like snails, clams, and squids. Molluscs have a true coelom, a fluid-filled body cavity completely lined with mesodermal tissue. Therefore, option B is incorrect.
c) Insects are pseudocoelomates:
Insects belong to the phylum Arthropoda. They have a true coelom, which is a body cavity completely lined with mesodermal tissue. Therefore, option C is incorrect.
d) **Flatworms (Platyhelminthes) are coelomates:**
Flatworms, such as tapeworms and planarians, belong to the phylum Platyhelminthes. They do not possess a true body cavity (coelom) at all. Instead, they have a solid mesoderm sandwiched between the ectoderm and endoderm layers. Therefore, option D is incorrect.
In conclusion, the correct statement about the given animals is option A: Roundworms (Aschelminthes) are pseudocoelomates.
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Which one of the following statements about certain given animals is c...
They have scattered pouch of coelom
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Which one of the following statements about certain given animals is correct? [2010]a)Round worms (Aschelminthes) are pseudocoelomatesb)Molluscs are acoelomatesc)Insects are pseudocoelomatesd)Flat worms (Platyhelminthes) are coelomatesCorrect answer is option 'A'. Can you explain this answer?
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Which one of the following statements about certain given animals is correct? [2010]a)Round worms (Aschelminthes) are pseudocoelomatesb)Molluscs are acoelomatesc)Insects are pseudocoelomatesd)Flat worms (Platyhelminthes) are coelomatesCorrect answer is option 'A'. 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 Which one of the following statements about certain given animals is correct? [2010]a)Round worms (Aschelminthes) are pseudocoelomatesb)Molluscs are acoelomatesc)Insects are pseudocoelomatesd)Flat worms (Platyhelminthes) are coelomatesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements about certain given animals is correct? [2010]a)Round worms (Aschelminthes) are pseudocoelomatesb)Molluscs are acoelomatesc)Insects are pseudocoelomatesd)Flat worms (Platyhelminthes) are coelomatesCorrect answer is option 'A'. Can you explain this answer?.
Which one of the following statements about certain given animals is correct? [2010]a)Round worms (Aschelminthes) are pseudocoelomatesb)Molluscs are acoelomatesc)Insects are pseudocoelomatesd)Flat worms (Platyhelminthes) are coelomatesCorrect answer is option 'A'. 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 Which one of the following statements about certain given animals is correct? [2010]a)Round worms (Aschelminthes) are pseudocoelomatesb)Molluscs are acoelomatesc)Insects are pseudocoelomatesd)Flat worms (Platyhelminthes) are coelomatesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements about certain given animals is correct? [2010]a)Round worms (Aschelminthes) are pseudocoelomatesb)Molluscs are acoelomatesc)Insects are pseudocoelomatesd)Flat worms (Platyhelminthes) are coelomatesCorrect answer is option 'A'. Can you explain this answer?.
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