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Read the following statements and select the correct option
Statement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.
Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.
Statement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.
Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.
- a)Both statements 1 and 2 are incorrect.
- b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.
- c)Statement 1 is correct and statement 2 is incorrect.
- d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Read the following statements and select the correct optionStatement 1...
The four chambered heart of birds is not superior to the four chambered heart of crocodiles. Both have heart as a muscle that pumps blood. Crocodile's heart has two aortic arches helping it to breath under water, which makes it's heart more complex than bird's heart.
Crocodile has two aortic arches, the two aortic arches connect with each other with the help of foramen of penizza as soon as they leave the heart but merge completely in the lower parts of the body away from the heart.
So, the correct option is 'Both assertion and reason are incorrect'.
This question is part of UPSC exam. View all NEET courses
Most Upvoted Answer
Read the following statements and select the correct optionStatement 1...
Statement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.
The statement suggests that the 4-chambered heart of birds is superior to the 4-chambered heart of crocodiles. To evaluate this statement, we need to compare the characteristics and functions of the hearts in both birds and crocodiles.
Heart Structure in Birds:
- Birds have a 4-chambered heart, consisting of two atria and two ventricles.
- The right atrium receives deoxygenated blood from the body, while the left atrium receives oxygenated blood from the lungs.
- The right ventricle pumps deoxygenated blood to the lungs, and the left ventricle pumps oxygenated blood to the rest of the body.
- The separation of oxygenated and deoxygenated blood prevents mixing and allows for efficient oxygenation of blood.
Heart Structure in Crocodiles:
- Crocodiles also have a 4-chambered heart, similar to birds.
- However, their heart has a unique feature called the "Foramen of Panizza" which allows some mixing of oxygenated and deoxygenated blood.
- The left systemic arch in crocodiles is not completely separated from the right systemic arch, leading to mixing of blood in the dorsal aorta.
- This mixing of blood is considered a primitive characteristic, and it reduces the efficiency of oxygenation.
Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.
Statement 2 provides an explanation for the superiority of the avian heart by highlighting a specific difference between crocodilian and avian hearts. It states that crocodiles retain both systemic arches, leading to the mixing of blood in the dorsal aorta, while birds have lost the left systemic arch.
This difference in the systemic arches is significant because it affects the efficiency of oxygenation in the two animals.
Analysis and Conclusion:
- The avian heart, with its complete separation of oxygenated and deoxygenated blood, ensures efficient oxygenation of blood, allowing birds to sustain high metabolic rates during flight.
- On the other hand, the crocodilian heart, with its mixing of blood in the dorsal aorta, is less efficient in oxygenation and may limit the metabolic activity of crocodiles.
- Therefore, statement 1 is correct in stating that the 4-chambered heart of birds is superior to the 4-chambered heart of crocodiles.
- Statement 2 is also correct as it provides a valid explanation for the superiority of the avian heart by highlighting the difference in systemic arches between birds and crocodiles.
Final Answer:
Both statements 1 and 2 are correct, and statement 2 is the correct explanation of statement 1.
The statement suggests that the 4-chambered heart of birds is superior to the 4-chambered heart of crocodiles. To evaluate this statement, we need to compare the characteristics and functions of the hearts in both birds and crocodiles.
Heart Structure in Birds:
- Birds have a 4-chambered heart, consisting of two atria and two ventricles.
- The right atrium receives deoxygenated blood from the body, while the left atrium receives oxygenated blood from the lungs.
- The right ventricle pumps deoxygenated blood to the lungs, and the left ventricle pumps oxygenated blood to the rest of the body.
- The separation of oxygenated and deoxygenated blood prevents mixing and allows for efficient oxygenation of blood.
Heart Structure in Crocodiles:
- Crocodiles also have a 4-chambered heart, similar to birds.
- However, their heart has a unique feature called the "Foramen of Panizza" which allows some mixing of oxygenated and deoxygenated blood.
- The left systemic arch in crocodiles is not completely separated from the right systemic arch, leading to mixing of blood in the dorsal aorta.
- This mixing of blood is considered a primitive characteristic, and it reduces the efficiency of oxygenation.
Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.
Statement 2 provides an explanation for the superiority of the avian heart by highlighting a specific difference between crocodilian and avian hearts. It states that crocodiles retain both systemic arches, leading to the mixing of blood in the dorsal aorta, while birds have lost the left systemic arch.
This difference in the systemic arches is significant because it affects the efficiency of oxygenation in the two animals.
Analysis and Conclusion:
- The avian heart, with its complete separation of oxygenated and deoxygenated blood, ensures efficient oxygenation of blood, allowing birds to sustain high metabolic rates during flight.
- On the other hand, the crocodilian heart, with its mixing of blood in the dorsal aorta, is less efficient in oxygenation and may limit the metabolic activity of crocodiles.
- Therefore, statement 1 is correct in stating that the 4-chambered heart of birds is superior to the 4-chambered heart of crocodiles.
- Statement 2 is also correct as it provides a valid explanation for the superiority of the avian heart by highlighting the difference in systemic arches between birds and crocodiles.
Final Answer:
Both statements 1 and 2 are correct, and statement 2 is the correct explanation of statement 1.
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Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer?
Question Description
Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct 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 Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct 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 Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer?.
Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct 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 Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct 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 Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Read the following statements and select the correct optionStatement 1: The 4-chambered heart of Birds is superior to the 4-chambered heart of Crocodiles.Statement 2: Crocodilian heart retains both systemic arches that join, causing the mixing of blood in the dorsal aorta while the avian heart has lost the left systemic arch.a)Both statements 1 and 2 are incorrect.b)Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.c)Statement 1 is correct and statement 2 is incorrect.d)Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.
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