Answer:
Anything that has mass and occupies space.
Explanation:
An established population that is accustomed to change.
Humans obtain nitrogen by eating other organisms.
The right answer is Lichen.
In ecology, a pioneer species is one of the first forms of life that colonize or recolonize a given ecological area.
Lichens are composite organisms resulting from a symbiosis between at least one heterotrophic fungus called mycobionte, representing 90% of all, and microscopic cells with chlorophyll (green algae or cyanobacteria autotrophic for carbon) called "photobionts" .
Answer:
It should be half a month or 15 days ago