To become part of the Constitution, an amendment must be ratified by either (as determined by Congress): 1  The legislatures of three-fourths (presently 38) of the states, within the stipulated time periodâif any;
In between the euphotic and the bathyal zone is the twilight zone, an area that still receives some sunlight, but not enough for plants to grow. The bathyal zone (aka midnight) is the middle zone that has no light. Many zooplankton and smaller fish live here.he euphotic zone is from the surface of the ocean down 200 meters. This zone is also sometimes called the sunlight zone because there is enough sunlight to have photosynthesis. This zone has the highest levels of sunlight, photosynthesis, and dissolved oxygen. Many large predatory fish live here.
The zone which extends from the base of the euphotic zone to about 200 metres is sometimes called the disphotic zone. While there is some light, it is insufficient for photosynthesis, or at least insufficient for photosynthesis at a rate greater than respiration.he bottommost zone, below the euphotic zone, is called the aphotic zone. Most deep ocean waters belong to this zone. The transparency of the water, which determines the depth of the photic zone, is measured simply with a Secchi disk.