OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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change the area and make it safer from predatory organisms
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invade the area so that the new organisms cannot be established
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modify the area and allow larger and more complex organisms to appear
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use up all the existing resources and prevent establishment of non-native organisms.
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Detailed explanation-1: -During primary succession, organisms must start from scratch. First, lichens might attach themselves to rocks, and a few small plants able to live without much soil might appear. These are known as “pioneer species.”
Detailed explanation-2: -A pioneer species is one that’s typically the first to colonize a barren ecosystem. These hardy plant and microbial species are also the first to return to environments that have been disrupted by events like wildfires and deforestation.
Detailed explanation-3: -Examples of pioneer species are lichens, algae, and fungi. These species are more tolerant and eventually contribute to the formation of the soil by breaking down rocks into smaller particles. They also provide organic matter to the area.