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Read the following statements:
(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.
(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.
(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.
(iv) Aschelminthes possess true body cavity.
(v) There is no cavity between the body wall and gut in Echinoderms.
Which of the statements are correct?
(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.
(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.
(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.
(iv) Aschelminthes possess true body cavity.
(v) There is no cavity between the body wall and gut in Echinoderms.
Which of the statements are correct?
- a)(i), (iii)
- b)(i), (ii), (iii)
- c)(iv), (v)
- d)(i), (iv), (v)
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Read the following statements:(i) True coelom is a body cavity which a...
I) True coelom arises from the mesoderm and is lined by mesoderm on both sides.
ii) Digestive cavity is not found in acoelomates.
iii) Haemocoel is the body cavity seen in arthropods and non-cephalopod molluscs.
iv) Aschelminthes (also known as Nematoda) possess a pseudocoelom, not a true body cavity.
v) Echinoderms possess a true body cavity, not lacking a cavity between the body wall and gut.
Thus, the correct statements are i and iii. The answer is Option A.
View all questions of this testii) Digestive cavity is not found in acoelomates.
iii) Haemocoel is the body cavity seen in arthropods and non-cephalopod molluscs.
iv) Aschelminthes (also known as Nematoda) possess a pseudocoelom, not a true body cavity.
v) Echinoderms possess a true body cavity, not lacking a cavity between the body wall and gut.
Thus, the correct statements are i and iii. The answer is Option A.
Most Upvoted Answer
Read the following statements:(i) True coelom is a body cavity which a...
✅ Correct Statements
1.(i) True coelom arises in the embryonic mesoderm.
•A true coelom is a fluid-filled cavity completely lined by mesoderm.
•Found in coelomates like annelids, molluscs, arthropods, echinoderms, and chordates.
2.(iii) Arthropods and non-cephalopod molluscs have a haemocoel.
•Their body cavity is filled with hemolymph and functions as part of the circulatory system.
•It replaces the true coelom in these animals.
❌ Incorrect Statements
3.(ii) Digestive cavity is found in all three groups (acoelomates, pseudocoelomates, coelomates).
•Not entirely true. Acoelomates like flatworms may lack a distinct digestive cavity.
•Some have a gastrovascular cavity or absorb nutrients directly.
4.(iv) Aschelminthes possess true body cavity.
•Incorrect. They have a pseudocoelom, not a true coelom.
•The cavity is not fully lined by mesoderm.
5.(v) No cavity between body wall and gut in Echinoderms.
•False. Echinoderms are coelomates and do have a true coelomic cavity.
✅ Final Answer: Option (a) (i), (iii)
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Community Answer
Read the following statements:(i) True coelom is a body cavity which a...
Correct Statements:
- (i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.
- (iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.
Explanation:
- Statement (i): True coelom is indeed a body cavity that develops from a cavity in the embryonic mesoderm. It is lined by mesoderm and provides space for organs to develop and move independently within the body.
- Statement (iii): Haemocoel is a body cavity found in arthropods and non-cephalopod molluscs. It is a spacious cavity that accommodates blood and surrounds the organs.
Incorrect Statements:
- (ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates - This statement is incorrect as acoelomates lack a body cavity, pseudocoelomates have a pseudocoelom, and coelomates have a true coelom.
- (iv) Aschelminthes possess true body cavity - Aschelminthes are pseudocoelomates, not possessing a true coelom.
- (v) There is no cavity between the body wall and gut in Echinoderms - Echinoderms actually possess a water vascular system instead of a body cavity.
Therefore, the correct statements are (i) and (iii), making option (a) the correct choice.
- (i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.
- (iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.
Explanation:
- Statement (i): True coelom is indeed a body cavity that develops from a cavity in the embryonic mesoderm. It is lined by mesoderm and provides space for organs to develop and move independently within the body.
- Statement (iii): Haemocoel is a body cavity found in arthropods and non-cephalopod molluscs. It is a spacious cavity that accommodates blood and surrounds the organs.
Incorrect Statements:
- (ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates - This statement is incorrect as acoelomates lack a body cavity, pseudocoelomates have a pseudocoelom, and coelomates have a true coelom.
- (iv) Aschelminthes possess true body cavity - Aschelminthes are pseudocoelomates, not possessing a true coelom.
- (v) There is no cavity between the body wall and gut in Echinoderms - Echinoderms actually possess a water vascular system instead of a body cavity.
Therefore, the correct statements are (i) and (iii), making option (a) the correct choice.
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Read the following statements:(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.(iv) Aschelminthes possess true body cavity.(v) There is no cavity between the body wall and gut in Echinoderms.Which of the statements are correct?a)(i), (iii)b)(i), (ii), (iii)c)(iv), (v)d)(i), (iv), (v)Correct answer is option 'A'. Can you explain this answer? for NEET 2026 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Read the following statements:(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.(iv) Aschelminthes possess true body cavity.(v) There is no cavity between the body wall and gut in Echinoderms.Which of the statements are correct?a)(i), (iii)b)(i), (ii), (iii)c)(iv), (v)d)(i), (iv), (v)Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following statements:(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.(iv) Aschelminthes possess true body cavity.(v) There is no cavity between the body wall and gut in Echinoderms.Which of the statements are correct?a)(i), (iii)b)(i), (ii), (iii)c)(iv), (v)d)(i), (iv), (v)Correct answer is option 'A'. Can you explain this answer?.
Read the following statements:(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.(iv) Aschelminthes possess true body cavity.(v) There is no cavity between the body wall and gut in Echinoderms.Which of the statements are correct?a)(i), (iii)b)(i), (ii), (iii)c)(iv), (v)d)(i), (iv), (v)Correct answer is option 'A'. Can you explain this answer? for NEET 2026 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Read the following statements:(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.(iv) Aschelminthes possess true body cavity.(v) There is no cavity between the body wall and gut in Echinoderms.Which of the statements are correct?a)(i), (iii)b)(i), (ii), (iii)c)(iv), (v)d)(i), (iv), (v)Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following statements:(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.(iv) Aschelminthes possess true body cavity.(v) There is no cavity between the body wall and gut in Echinoderms.Which of the statements are correct?a)(i), (iii)b)(i), (ii), (iii)c)(iv), (v)d)(i), (iv), (v)Correct answer is option 'A'. Can you explain this answer?.
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