Question

Open circulatory system is found in:

• A. pigeon
• B. butterfly
• C. man
• D. cat

Hint:

Open circulatory systems are found in arthropods and some mollusks.

Answer 1

The Correct Option is B

In an open circulatory system, blood is not confined to vessels but flows freely in body cavities. Insects like butterflies have this type of circulatory systemThus, the correct answer is \( \mathbf{(B) \text{butterfly}} \).