Across
- 2. which blood vessel connects the veins to the arteries?
- 4. What is this the definition for 'a group of cells working together to carry out a particular job'?
- 7. What are the two lower chambers of the heart called?
- 9. What do our white blood cells produce to protect us from infection?
- 11. What are the two upper chambers of the heart called?
- 12. What is this the definition for 'a micro organism which causes disease'?
- 14. Name the cell in the blood that carries oxygen
- 15. What is this the definition for 'a group of tissues working together to carry out a particular function'?
Down
- 1. Name the cell in the blood that protects us from infection
- 3. Which blood vessel carries blood back to the heart?
- 5. What is inside of a vaccine?
- 6. Name the yellow liquid in the blood
- 8. How many chambers do we have in our heart?
- 10. Which blood vessel carries blood away from the heart?
- 13. What is this the definition for 'all living thing'?