Ecological Succession
Easybiology
Primary succession begins on substrates such as:
Select the correct option:
Solution
Incorrect! Answer:
Bare rock from volcanic lava
- Ecological Succession: The gradual change in species composition in a given area.
- Primary Succession: Occurs in newly formed or exposed areas where no soil or life ever existed before.
- Examples: Newly cooled lava, bare rock, newly formed ponds.
- Secondary Succession: Occurs in areas where a biological community has been removed but the soil remains.
- Examples: Abandoned farms, burned forests, flooded areas.
- Pioneer Species: Lichens are typically the pioneer species in primary succession on bare rock, helping to break down the rock into soil.
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About This Question
- Subject
- biology
- Chapter
- ecology and environment
- Topic
- ecological succession
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Bare rock from volcanic lava
- Ecological Succession: The gradual change in species composition in a given area.
- Primary Succession: Occurs in newly formed or exposed areas where no soil or life ever existed before.
- Examples: Newly cooled lava, bare rock, newly formed ponds.
- Secondary Succession: Occurs in areas where a biological community has been removed but the soil remains.
- Examples: Abandoned farms, burned forests, flooded areas.
- Pioneer Species: Lichens are typically the pioneer species in primary succession on bare rock, helping to break down the rock into soil.
This easy difficulty biology question is from the chapter ecology and environment, covering the topic of ecological succession. It appeared in the 2025 exam.
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