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Unilorin Post-UTME Biology 2024 (Model questions) Question 7

Question 7

Transport in Animals

Which of the following has an open circulatory system?

  1. A.Human
  2. B.Goat
  3. C.Grasshopper
  4. D.Frog
Show the answer and explanation

Answer: C (Grasshopper)

Explanation

Insects such as the grasshopper have an open system where blood bathes the organs in a body cavity. Vertebrates like humans, goats and frogs have closed systems.