Answer:
1. B Prokaryotes lack a nucleus and membrane-bound organelles
2. C glucose
<h3> Answer</h3>
alveoli
<h2> Explanation</h2>
During gas exchange oxygen moves from the lungs to the bloodstream. ... This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
It’s weathering bc it has been smoothing by weathering and water erosion