Shrubs and trees regrow quickly in an area that has been burned during a forest fire.
Algae,grasses, and other small plants grow on newly exposed rock over a long period of time.
I have seen several people get this wrong a lot. Cilia, which is more associated with cell movement is not so with Paramecium. To capture food, a Paramecium uses its cilia to capture food and transport it to the "mouth"
Animal cells do not have cell walls. But plant cells do
In addition to gases, air also contains Particles.