The Vertical Zones of the Open Sea (Euphotic, Bathyal, and Abyssal)

question 2

Short Answer

The vertical zones of the open sea (euphotic, bathyal, and abyssal) are differentiated primarily by the penetration of ____________________.

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Definitions:

PET Scans

Positron Emission Tomography scans, a type of imaging test that allows doctors to check for diseases in the body by using a special dye containing radioactive tracers.

fMRI

Functional Magnetic Resonance Imaging, a technique for measuring and mapping brain activity by detecting changes associated with blood flow.

Broca's Aphasia

A condition resulting from damage to the Broca's area of the brain, characterized by impaired speech production while understanding of language remains relatively intact.

Speech

The verbal expression of thoughts and feelings through articulated sounds.