Answer: The arteries (the aorta)
Reading through the entire investigation before beginning the procedure can help prevent accidents by giving you the knowledge of what to do beforehand and preparing you for what is to come.
Brain injury classified as an injury of the central nervous system.
A gut with 4 stomachs would be the one. This is often found in animals that feed on grass and other plants and need 4 stomachs to be able to process the food.