Answer:
Among the initial signs of iron poisoning are nausea and abdominal pain. Vomiting blood can also occur. Iron poisoning can also lead to diarrhea and dehydration. Sometimes, too much iron causes stools to turn black and bloody.
Explanation:
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Answer:
The correct option is: B) peristalsis
Explanation:
Peristalsis is the involuntary wave-like contractions and relaxations of the smooth muscles of the gastrointestinal tract of the humans.
These alternating contractions and relaxations produces a peristaltic wave that pushes the food down the esophagus of the digestive system. The peristaltic movement prevents the food from moving backwards and pushes the food forward.
Answer: d. autonomic nervous system
Explanation:
The dilation of the pupil occurs due to the radial muscles. This is controlled by the autonomic nervous system. The autonomic nervous system consists of sympathetic and parasympathetic nervous system. The sympathetic nervous system controls the dilation of pupil whereas the parasympathetic nervous system controls the contraction of pupil.
A dilation response generally involves the widening of the pupil that may be caused by the adrenaline and drugs like cocaine, MDMA, amphetamines, hallucinogens and dissociatives.
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The medical history states that the patient has been exposed to air pollution, asbestos, and radiation. In addition to this, the patient smoked for 30 years. Presented with this information, one can conclude that the factor that contributed the most to the development of lung cancer would be smoking.
So, the answer to the question is that the habit of smoking had the greatest impact on the development of his cancer.
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