Answer:
The esophagus.
Explanation:
Which is a long tube that connects the mouth to the stomach
Answer:
It will eventually become unsustainable because of factors like food, water, space, etc.
<span>A gradual increase in atmospheric carbon dioxide would warm earths atmosphere becuse carbon dioxide is <em>a greenhouse gas</em></span>
Answer:
Photosynthesis
Explanation:
Breaking down sugar, locomotion, copying its own DNA, allowing certain substances to pass through the cell membrane while keeping others out.
