Question:
Read the following statements about open circulatory system and choose correct statements.
1. Blood is circulated through the body cavities.
2. Exchange of material takes place directly between blood and cells.
3. The blood flows with high pressure.
4. It is found in arthropods and most molluscs.
Read the following statements about open circulatory system and choose correct statements.
1. Blood is circulated through the body cavities.
2. Exchange of material takes place directly between blood and cells.
3. The blood flows with high pressure.
4. It is found in arthropods and most molluscs.
1. Blood is circulated through the body cavities.
2. Exchange of material takes place directly between blood and cells.
3. The blood flows with high pressure.
4. It is found in arthropods and most molluscs.
Show Hint
In an open system blood is not confined to vessels, so pressure is low.
Updated On: Nov 12, 2026
- 1,2 and 4 only
- 1 and 3 only
- 2 and 3 only
- 1,2,3 and 4
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
In an open circulatory system the heart pumps blood into open spaces called sinuses.
Step 2: Check each statement
1 is true: blood flows through body cavities.\n2 is true: tissues are bathed directly by blood.\n3 is false: blood moves slowly under low pressure.\n4 is true: it occurs in arthropods and most molluscs.
Step 3: Conclusion
Statements 1, 2 and 4 are correct.
Final Answer:
Statements 1, 2 and 4 only are correct. \[ \boxed{\text{(A) }\text{1,2 and 4 only}} \]
In an open circulatory system the heart pumps blood into open spaces called sinuses.
Step 2: Check each statement
1 is true: blood flows through body cavities.\n2 is true: tissues are bathed directly by blood.\n3 is false: blood moves slowly under low pressure.\n4 is true: it occurs in arthropods and most molluscs.
Step 3: Conclusion
Statements 1, 2 and 4 are correct.
Final Answer:
Statements 1, 2 and 4 only are correct. \[ \boxed{\text{(A) }\text{1,2 and 4 only}} \]
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