<span>Aphotic zone (bathypelagic zone)</span><span> The region of a lake or sea where no light penetrates; it is situated beneath the </span>euphotic zone<span>. The aphotic zone contains no algae or phytoplankton, and its inhabitants are exclusively carnivorous animals or organisms that feed on sediment or detritus, all reliant on energy inputs from the euphotic zone. It extends downwards from a depth of about 1000 m, or less in turbid waters, and includes the </span>abyssal zone<span>.</span>
The pierce ears on a person will not be passed on to there children however children often look like their parents why might this be so?
Piercing of ears is not an inheritable character rather it is an environmental character that is influenced by the environment rather not controlled by the gene
Deep ocean currents Differences in water density, resulting from the variability of water temperature (thermo) and salinity (haline), also cause ocean currents. This process is known as thermohaline circulation.
