its neither and both... secondary succession merely means that the areas life was destroyed and is growing again... you would have to know the history of the area.
No, grass poking through a sidewalk is an example of secondary succession. Primary succession occurs on entirely new substrates, while secondary succession occurs on previously established ecosystems that have been disturbed or disrupted.
Secondary succession can happy after primary succession . Secondary can be independent but is not usually independent from primary succession.
Primary succession. Follow the answer to "What is secondary succession?".
secondary sucession
Grass poking through a crack in a sidewalk is an example of secondary succession. This is because the sidewalk already existed, and the grass is growing after a disturbance (such as the cracking of the sidewalk) has occurred, allowing for new plant growth in the area.
It's primary succession!
there not
primary succession
A good example of primary succession takes place after a volcano has a secondary succession is a process started by an event.
there not
secondary succession
There are 3 types of successions. One is called ecological succession, the next is called primary succession, and the last one is called secondary succession.