Across
- 1. A positive lifestyle choice to maintain good health
- 3. The process where food is broken down into nutrients
- 5. The direction of the diaphragm when breathing in
- 7. The circulatory system is made up of blood, vessels and the ...
- 8. A negative lifestyle choice that can affect the development of an unborn baby
Down
- 2. The body system responsible for absorbing oxygen and removing carbon dioxide
- 4. A substance produced to help the body defend itself against pathogens
- 6. The third level in the levels of organisation of a multicellular organism