The deep sea · explain the term

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NatureOne small aha

Your new ahaThe part of the ocean below the reach of sunlight in most places.

Sunlight does not reach most deep-sea habitats. Source: Deep sea ↗

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47Hydrothermal vent · explain the termRECALL
A seafloor opening that releases heated, mineral-rich water.
Vent ecosystems can be powered by chemical energy rather than sunlight.
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48Chemosynthesis · explain the termRECALL
Making organic matter using chemical energy instead of sunlight.
Some bacteria at deep-sea vents use chemicals such as hydrogen sulfide as an energy source.
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49Adult female sea turtle · its common nesting-site behaviourRECALL
Return to the general region where it hatched to nest.
This behavior is called natal homing, though routes and precision vary among species.
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