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Questions and Answers
What is an ecosystem?
In a lake ecosystem, based on light penetration, how many zones is it divided into?
What are the abiotic components of a lake ecosystem?
Which layer of the tropical rainforest is closest to the ground?
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From where do plants obtain nutrients for synthesizing food through photosynthesis?
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What is the role of phytoplankton in the limnetic zone?
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Which zone is characterized by open water below the level of light penetration?
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What organisms dominate the benthic zone?
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Where do aquatic plants predominantly grow in the lake ecosystem based on light penetration?
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Which ecosystem exists near the equator in South and Central America, Africa, and Southeast Asia?
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Study Notes
- Ecosystem: interacting system of biotic community and abiotic environment where energy flows and nutrient cycles take place
- Lake ecosystem: stratified aquatic biome, classified by light penetration and distance from shore
- Light penetration: determines division into photic and aphotic/profundal zones
- Photic zone: zone of light penetration for photosynthesis, inhabited by phytoplankton and other organisms
- Aphotic/profundal zone: zone below the level of light penetration, where there is no photosynthesis, dominated by heterotrophs
- Lake ecosystem based on distance from shore: divided into littoral and limnetic zones
- Littoral zone: shallow water close to the shore with plenty of vegetation and inhabitants like insects, crustaceans, and fish
- Limnetic zone: well-lit open water further from the shore, inhabited by phytoplankton, zooplankton, and fish, with phytoplankton serving as the base of the food chain
- Tropical rainforest ecosystem: richest and most diverse terrestrial biome, located in tropical regions with abundant rain, high humidity, and dominated by oxygen-consuming organisms in the benthic zone.
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Description
Test your knowledge on ecosystems and biomes, including lake ecosystems, light penetration zones, and tropical rainforest characteristics.
