Name: Ecosystem Services
Uploaded: 2019-07-19
Duration: 8 min 16 s
Description: Ecosystem services are the direct and indirect contributions of ecosystems to human well-being. Let's watch the video to learn more about them.

Question

Correct the sentence without changing the underlined word.

Primary succession starts where there was living matter present previously.

Accepted Answer

Ecological succession is described as the steady and gradual change that takes place in a species of a given area until a stable stage is reached, concerning the changing environment. The process is also referred to as Plant Succession. The community that is established at the site as a result is referred to as Climax Community. This process continues and successive communities develop one after another over the same area until the terminal final community again becomes more or less stable for a while.

This ecological succession involves various steps:

NUDATION

INVASION

ECESIS

COMPETITION

REACTION

STABILIZATION

Ecological succession is of two types: Primary succession and Secondary succession.

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. The succession takes place of bare land.

In secondary succession, the plants and animals recolonize a habitat after a major disturbance such as a devastating flood, wildfire, landslide, lava flow, etc.

Therefore, it is in secondary succession that an area was previously occupied by living things which is disturbed, disrupted, and then recolonized following the disturbance.

Hence, Primary succession starts where there was no living matter present previously.

Correct the sentence without changing the underlined word.

Primary succession starts where there was living matter present previously.

Important Questions on Ecosystems

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