I would say a 6 because it causes genital warts and types of cancer. But the warts are not deadly.
hope this helped!
Vomiting and reflux can cause these stomach acids to enter your mouth. Stomach acids are very strong and can cause substantial damage to the teeth. For example, people with bulimia, morning sickness or reflux (which can sometimes occur without you knowing) may experience this problem.
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Answer:
heart bc it increases the heart rate
What structure of the eye converts photons of light to an action potential?-<u><em>Depolarized bipolar cells fire an action potential that releases neurotransmitter onto the ganglion cells, which fire an action potential that goes down the optic nerve to the brain. Important parts of eye: cornea, aqueous humor, iris, pupil, lens, vitreous humor, retina.
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