Multiple Choice
Which organism must live in the photic zone of the ocean biome to perform photosynthesis?
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48. Ecology
Introduction to Aquatic Biomes
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Which of the following aquatic ecosystems contains the aphotic zone?
A
Estuaries
B
Open ocean
C
Coral reefs
D
Freshwater lakes
Verified step by step guidance1
Begin by understanding the concept of the aphotic zone. The aphotic zone is the part of an aquatic ecosystem where sunlight does not penetrate, making it impossible for photosynthesis to occur.
Consider the characteristics of each aquatic ecosystem listed: Estuaries, Open Ocean, Coral Reefs, and Freshwater Lakes.
Estuaries are typically shallow and receive ample sunlight, so they do not contain an aphotic zone.
Coral reefs are also shallow and located in areas with sufficient sunlight, thus lacking an aphotic zone.
The open ocean is vast and deep, with regions where sunlight cannot reach, making it the ecosystem that contains the aphotic zone.
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