The eardrum is a thin flap of skin that is stretched tight like a drum and vibrates when sound hits it.
Answer:
A. Rock pieces
Explanation:
Abrasion is the breaking down and wearing away of rock material by the mechanical action of other rocks. Three agents of physical weathering that can cause abrasion are moving water, wind and gravity. None of those are agents of abrasion. But Rock pieces are a result of abrasion.
I believe that would be irritability.
<span>Your genetic profile would be tested. Each genetic profile is unlike any other persons. To create your genetic profile samples of different areas of your body are used and then can test for your susceptibility to different diseases, not just alzheimer's disease.</span>
The basic needs of all cells in the body is to have food, oxygen, and have their wastes taken away.