Scelta multipla
Which of these aquatic biomes is one of the most productive of all biomes?
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48. Ecology
Introduction to Aquatic Biomes
Scelta multipla
In the aphotic zone of aquatic biomes, where does food primarily come from?
A
Chemosynthesis by hydrothermal vent bacteria
B
Direct sunlight absorption by algae
C
Consumption of surface-dwelling fish
D
Photosynthesis by deep-sea plants
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Understand the aphotic zone: The aphotic zone is a part of aquatic biomes where sunlight does not penetrate, making photosynthesis impossible.
Identify the primary source of food: In the absence of sunlight, organisms rely on chemosynthesis, a process where bacteria convert inorganic molecules into organic matter using chemical energy.
Explore hydrothermal vents: Hydrothermal vents are found in the deep ocean and release minerals that bacteria use for chemosynthesis.
Recognize the role of bacteria: Bacteria near hydrothermal vents use chemicals like hydrogen sulfide to produce food, supporting the ecosystem in the aphotic zone.
Eliminate other options: Direct sunlight absorption, consumption of surface-dwelling fish, and photosynthesis by deep-sea plants are not viable in the aphotic zone due to lack of sunlight.
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