Open circulatory is found in
BIOLOGYPOST UTME FUTO
Open circulatory is found in
- A) rat
- B) bird
- C) toad
- D) insect
Correct Answer: D) insect
Explanation
Open circulatory system is a type of circulatory system where blood is not enclosed within blood vessels. This type of circulatory system is found in some invertebrates such as insects. Therefore, the correct option is D - insect. Insects have an open circulatory system where the heart pumps blood into the body cavity, and it eventually returns to the heart. Unlike insects, mammals such as rats have a closed circulatory system where blood is enclosed within blood vessels. Birds and fish also have a closed circulatory system. Toads have a double circulatory system, which is neither open nor closed.
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