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kirza4 [7]
3 years ago
7

Breathing is a coordinated effort of respiratory organs to

Biology
1 answer:
Softa [21]3 years ago
7 0
To oxygenate your blood cells.
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1     Long term exposure to harmful genotoxic chemicals or ionizing radiation can cause changes in the base sequence of DNA.Chemicals might induce DNA mutations, such as polycyclic hydrocarbons (fumes found in oil stations, or smoke from a tobacco cigarette), intercalating agents such as Ethidium Bromide (carcinogen), but also radiations such as UV-radiation (C and T bases are most vulnerable and would bind to identical bases unstead of their

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