Blood - Words and Definitions 2

Match the definitions with the words.
gas that is produced when animals or people breathe out
substance that is in food and which your body needs to grow
blood vessel that brings blood from parts of the body back to your heart
long tube which food goes through after it leaves your stomach
to breathe in
to fix something that is broken
the liquid part of our blood
a gas that is in the air and that we need to breathe
something that exists very often
the height that an object has above sea level