Ecological succession takes place in an area where - changes in the community's species composition occurs over time.
an invasive species is artificially introduced.
large organisms outcompete smaller organisms.
weeds grow in a garden next to vegetables.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.