<span>Our biosphere is the global sum of all ecosystems. It can also be called the zone of life on Earth, a closed (apart from solar and cosmic radiation) and self-regulating system. Geology studies the Earth, and has tendrils in all ecosystems, thus the connection to the biosphere.</span>
I think the correct answer among the choices listed above is the first option. In an ecosystem without primary consumers, t<span>he populations of producers would increase. This is because nothing will eat the the producers or the plants. The plants will only grow and increase.</span>
A. in plants, a new cell wall forms to split the cell.
