Please help I will mark brainliest

The is a thin membrane that transmits sound waves into the middle ear.

If the singular term ends in -us, the plural is usually formed by changing the ending to

Which statement best illustrates that problem solving can create new medical devices? robert hooke was in charge of verifying the information that was sent to the royal academy. william harvey did experiments with apes to learn about the circulatory system. the stethoscope was invented because the physician did not want to put his head on women's chests to listen to their heart and lungs. anton van leeuwenhoek was a very curious man and looked at just about everything under this microscope.