Answer:
1. A
2. D
3. A
4. B
5. D
Explanation:
1. Circulatory System controls blood flow. Blood contains oxygen. Like it's obvious.
2. Badminton is a game of coordination. I'm bad at sports.
3. Veins are the largest blood vessels, including the inferior vena cava.
4. Bones doesn't produce anything. They only serve as support and protection. Wouldn't make sense if they did though. Imagine each of your bones had producing organs inside. Eeeeeewww
5. Skull (or Cranium) is the bone that protects your head. "Sira ulo" would be mentioning the skull, not the brain. So yeah, that means you have a broken skull, and still have a functional brain.
Anyway hope this helped. I should get back to work
