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Across 1. Metal that can lead to the loss of Calcium ions in bones causing bone weakness and leads to cancer and liver and kidney failure 4. Insecticide used for farming and insect control so you get small dosages from foods you eat 5. Common flower than can give you a heart attack 6. Inactivates enzymes that are needed to produce ATP 7. The lack of this leads to the shut down of cellular respiration 8. Chemicals that can cause cancer. 9. Bind to the iron(III) ions in enzymes known as cytochrome oxidases which puts an end to cellular respiration 12. Chemical on hemlock that causes paralysis of the respiratory system 13. Produced by a bacteria that thrives in low oxygen so often found in improperly home canned foods 14. Carcinogen that is one of largest causes of cancer. 15. Commonly used as preservative for deli meats and has been linked to cancer and heart disease 16. Metal which can cause brain, liver, and kidney damage and is especially harmful to children's mental development. 17. Gas that causes buildup in ACh which leads to muscles going crazy and causing your nose to run, eyes to cry and your body to evacuate all waste

Down 1. Binds tightly to the iron in hemoglobin preventing the transport of oxygen.(two words, no space) 2. Primary neurotransmitter that nerves use to communicate with the body and also signal muscles to start and stop moving 3. Plant product which when introduced into the body, can replace citric acid(two words no space) 7. The first step used by the liver uses ______ and oxygen to burn toxins to make them more water soluble and easier to eliminate 10. A substance that causes injury, illness, or death of a living organism. 11. Metal which causes brain damage among other things by deactivating key enzymes in the nervous system 14. The second step used by the liver combines partially processed ________ with sulfur or amino acids so they can be removed through bile or urine