Scientific hypothesis is an idea that has been proven by a group and / or individual but has'nt been world wide and a scientific theory is already proven and accepted hypothesis.
<span>The oesophagus is the muscular tube in humans and most other vertebrate organisms that carries food from the pharynx, or throat, down to the stomach. It is lined with a thick, moist pink tissue called mucosa.</span>
Organism X existed for a short period of time. I really like geology so trust me, I am 100% sure about this question.
(Mark me as the brainiest if this answer helps you!)
They are buried in the core of the structure.
