Answer:
It is a microscopic, both functional and structural unit of the kidney.
Explanation:
it is composed of a renal corpuscle and a renal tubule.
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Answer:
Tobacco can affect the excretory system by causes colorectal cancer.
Explanation:
The exact cause of colorectal cancer is not clear, but certain risk factors, including diet, cigarette, smoking and heavy alcohol consumption and using tobacco are strongly linked to the disease.
Individuals with other genetic cancer syndromes or a family history of colorectal cancer may have a high chance of developing the disease.