EVERYDAY SCIENCE

SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
So, how does an ecosystem start if there is no soil?
A
Moss and lichen break down rock and lava and produce soil.
B
Moss and lichen are air borne and they move by the wind to start in a secondary succession environment.
C
Moss and lichen are simple living organism that can start growing almost anywhere.
D
All answers
Explanation: 

Detailed explanation-1: -Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life (because of recent lava flows, newly formed sand dunes, or rocks left from a retreating glacier).

Detailed explanation-2: -So, how does an ecosystem start if there is no soil? Moss and lichen break down rock and lava and produce soil. Moss and lichen are air borne and they move by the wind to start in a secondary succession environment. Moss and lichen are simple living organism that can start growing almost anywhere.

Detailed explanation-3: -Primary succession happens when a new patch of land is created or exposed for the first time. This can happen, for example, when lava cools and creates new rocks, or when a glacier retreats and exposes rocks without any soil. During primary succession, organisms must start from scratch.

Detailed explanation-4: -Without ecological succession, Earth would be much like Mars. Ecological succession provides diversity and depth to a biotic community. Without it, life can not grow or progress. Succession, it seems, is the gateway to evolution.

Detailed explanation-5: -The 5 stages of Ecological Succession in successive order are Nudation, Invasion, Competition and Co-action, Reaction, and Climax or Stabilization.

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