The eardrum is a thin flap of skin that is stretched tight like a drum and vibrates when sound hits it.
Answer:
The earth is turning.
Explanation:
when the earth turns it causes the sun to move from one part of the sky to the other. The earth revolves around the sun. So when it become night time for example, the sun is just on the other side of the earth.
It would be an oncogene, these can be inherited mutations of proto-oncogenes that cause the oncogene.
Answer:
a lake where light is being refracted from the water
