The Nucleus is the hub of the cell, the heart and soul of the cell. As much as a quarterback is in a football team. The Nucleus is what keeps the cell going and a cell wouldn't exist without a Nucleus. Hope this helped, have an amazing day :)
Answer:
B. Geothermal
Explanation:
Fossil fuels and coal both require extremely old material to form. Geothermal energy is generated and stored in Earth.
I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
I believe it would be C) Cellulose. As this is one of the essential components found in the cell wall of plant cells.
