The change in the composition of species in the community over time is the best answer
Smooth ER<span> also regulates and releases calcium ions and processes toxins. It is described as '</span>smooth<span>' to distinguish it from rough </span>ER<span>, which has ribosomes for protein synthesis on its surface. Each organelle in the cytoplasm of a cell is responsible for performing a certain function.</span>
Answer:
Membrane bound organelles ( Mitochondria, lysosome, Nucleus,..)
Plenty of (Surfaces) need to be present in atmosphere.
