NEET BIOLOGY

Detailed explanation-1: -Solution : The closed circulatory system is more efficient than the open circulatory system because in open circulatory systen, the blood flows through open spaces and channels whereas in closed circulatory system, the blood flows through proper blood vessels.

Detailed explanation-2: -A closed circulatory system is more efficient than an open circulatory due to the following reasons: As blood flows inside the blood vessels, it circulates with more pressure reaching far distances. Blood circulates faster in a closed system, thus transporting more oxygen, nutrients, and wastes to the body cells.

Detailed explanation-3: -In a closed circulatory system, blood is transferred faster than in an open circulatory system. That is why the closed circulatory system is more advantageous than the open system.

Detailed explanation-4: -Answer and Explanation: The correct answer is d.-There is no heart to pump the blood (in open circulatory system). The Heart in closed circulatory system majorly functions to pump the blood through blood vessels to all organs.

Detailed explanation-5: -Why is an open circulatory system less efficient than a closed circulatory system? It is more difficult to quickly deliver O2 to specific tissues when needed with an open circulatory system.