DDT pollutant accumulates in top consumers as it passes from prey to predator in the food web. This is known as _______.

Organisms that are introduced into a habitat and multiply rapidly causing a disturbance are known as _______.

Which of these is not a threat to biodiversity and ecosystems?

Which of these is not an example of a flowing water system?

Salt or Fresh water that covers soil or presents at or near soils parts of the year are called _______.

Organisms exposed to regular extreme changes with strong currents and waves live in a(n) _______.

______ are among the most diverse and productive aquatic environments on Earth.

Organisms that live near the ocean floor that feed from detritus from above live in _______.

Water circulates within to distribute heat, oxygen and nutrients in which aquatic ecosystem?

The variety of habitats communities and ecological processes in the living world is known as

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