Blood has three main functions: transport, protection and regulation. Blood transports the following substances: Gases, namely oxygen (O2) and carbon dioxide (CO2), between the lungs and rest of the body. Nutrients from the digestive tract and storage sites to the rest of the body.
Answer:
Internal can be you don't want bad things happening to your body, you don't want drugs affecting your health,etc.External could be you don't want it to affect your family or people around you.For example, like a cigarette if you are smoking in public you can be affecting others passing by or hanging out with you(external)but if it's just you by yourself smoking it is damaging your lungs(internal)
Answer:
But that is not the answer
Explanation:
Unique approach towards cancer treatment by diagnosis, cure & prevention of disease.
Answer:
Foreign/Exotic species
Explanation:
If you are talking about introduced, think of foreigners but as animals.
Answer: Cleared mind, fresh air, nature in it's beauty.
