<span>Carrying capacity is how much population a certain region of the environment can contain, in other words. If population goes over carrying capacity, then there is more competition for resources.
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Answer:
C) esophagus - moves air from the nose into the lungs
Explanation:
The oesophagus is a muscular tube with a sphincter valve at each end. Its main function is to transport food and fluid, after being swallowed, from the mouth to the stomach.This is propelled from the pharynx into the oesophagus, and towards the stomach in a peristaltic waves. The peristalsis also pushes food along the alimentary canal
You just have to describe on how the cell structure will describe themselves .