Question

1. A dome-shaped structure separating the ribcage from the abdomen.​

Answer 1

Answer:

Diaphgram

Explanation:

it is mascular in nature

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Answer 2

Diaphragm is a dome-shaped structure separating the ribcage from the abdomen.

It separates the thoracic and abdominal cavities from each other by closing the inferior thoracic aperture.