B.cell wall
Cellulose is an important structural component of the primary cell wall of green plants.
Answer:
the food web
Explanation: A food web is a conceptual model that represents the flow of energy through an ecosystem.
Answer:
the corret answer is the sun
Explanation:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water.
