Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke.
Explanation:
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The answer would be B. climate
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The answer to this is Axial
Answer:
Answer: Option A.
Explanation:
Haploid cell is the cell that have a single set of chromosomes . In human, haploid cells have 23 chromosomes compare to 46 number of chromosomes diploid cells have.
Drugs undergo four stages within the body: absorption, distribution, metabolism, and excretion.<span> Drugs can be absorbed through the skin.
</span><span>Or, some drugs can be inhaled as gases. Gases penetrate the lining of the esophagus and lungs very quickly, which allows the drug to enter the bloodstream. </span><span>
</span>Once a drug has entered the bloodstream,the blood throughout the body carries the substance with it.
The digestive system is involved in the process of metabolism of the drugs. and transform drugs into substances that can be expelled by the body. Enzymes within the liver break down the drugs.
