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A LITTLE SOMETHING WORTH KNOWING

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NatureOne small ahaEcology

The deep sea · explain the term

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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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More from Ecosystems

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  1. 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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  2. 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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  3. 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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