Answer:
Cellulose is the main substance found in plant cell walls and helps the plant to remain stiff and strong. Humans cannot digest cellulose, but it is important in the diet as a source of fibre.
Explanation:
The lake bottom is lined with rocks because an abiotic is a non-living thing in an environment while biotic is a living thing in a environment
It was fairly easy since you could categorize them based on pitch.
Answer:
c. potential Hydrogen strips and written observations of stream water
