Answer :
Benthic zone is called as the floor of an aquatic biome. So, the correct option is A.
What is Benthic zone?
The benthic zone is defined as the lowest ecological zone in a water body, usually consisting of sediments on the ocean floor, where these sediments play an important role in providing nutrients for the organisms that live in the benthic zone.
Benthic zone is called as the bottom zone of a water body, fresh or marine where the light penetration is nil. Benthic animals include the polychaetas which live in or on the bottom while the animals that live in or on the bottom of the Bay are called the benthic community.
Despite being hidden, the benthic zone is a crucial component of lake ecosystems. Many aquatic species can breed, forage, and find shelter in this area alone. The shallow coastal waters' benthic zones offer optimum environment for animal and amphibian breeding.
So, the correct option is A.
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Answer: The floor of an aquatic biome is called the benthic zone.
Explanation:
