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2. The blood's ability to carry oxygen is blocked by A. tar. B. carbon monoxide. C. nicotine. D. formaldehyde.
The answer is B. carbon monoxide. ; CO binds better to hemoglobin than oxygen does. [ ]
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User: 2. The blood's ability to carry oxygen is blocked by A. tar. B. carbon monoxide. C. nicotine. D. formaldehyde.

Weegy: The answer is B. carbon monoxide. ; CO binds better to hemoglobin than oxygen does. [ ]
bongche|Points 3864|

User: 4. Tobacco smoke paralyzes and kills A. cilia. B. alveoli. C. lungs. D. mucus.

Weegy: Tobacco smoke paralyzes and kills cilia.



User: 6. Maria just found out she is pregnant. She and her husband, Ed, smoke. They both need to quit smoking now. Why should they not resume smoking after their baby is born? A. Smoking can cause their baby's growth rate to slow. B. Smoking can increase the risk of Sudden Infant Death Syndrome (SIDS). C. Smoking can increase the risk that they and their baby will develop respiratory illnesses. D. all of the above

Weegy: D. all of the above
Expert answered|simplekaren89|Points 157|

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Asked 1/22/2013 12:33:27 AM
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2. _____________ are the highest ranking U.S. representatives in foreign countries. A. Ministers B. Ambassadors C. Secretaries D. None of the above
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Not Answered
Updated 181 days ago|4/26/2014 8:32:31 PM
1 Answer/Comment
Ambassadors are the highest ranking U.S. representatives in foreign countries.
Added 181 days ago|4/26/2014 8:32:31 PM
This answer has been added to the Weegy Knowledgebase
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Updated 1/22/2013 6:58:35 PM
1 Answer/Comment
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