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:
Correct answer: Greenhouse effect.
If you hit your head hard possibly. if just playing and running no.
Answer:
A hamster is a primary consumer because it feeds on primary producers (plants).
