Because cellulose is a complex polysaccharide which is essential in dietary functions. Since we don't have the enzymes that digest cellulose, it passes through our gut unchanged hence form an important roughage which aids in preventing constipation as well as smooth movements of our intestines.
Answer:
Those spots are called maria, from the Latin word for sea, because early astronomers mistakenly thought they were lunar seas (they're actually volcanic plains). The smooth and dark maria cover 17 percent of the surface of the moon. Almost all of them are visible from Earth
Explanation:
Answer:
<u><em>Cell Membrane (Plasma Membrane)</em></u>
The cell membrane consists of a lipid bi-layer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Explanation:
Answer: Solid
Explanation: The rest of the options don't have a definite shape nor volume.
By humans breathing . or by pollution .
