Question

Which one statement is correct
1 Blood transports only oxygen and not carbon dioxide
2 Human heart h 5 chambers 3 Valves insure that blood does not flow backwards 4 Both oxygen rich and oxygen deficient blood gets mixed in the heart

Answer 1

Answer:

3 rd statement is correct

Explanation:

Answer 2

Answer:Both 1 st and 2nd statements are wrong. The 3rd statement is correct regarding lower animals such as fish and frog etc. But in human heart oxygenated and deoxygenated blood does not mix

Explanation: Both O2 and CO2 are transported through blood. Human heart has 4 chambers only.