Entering the Twilight Zone Animals that live in the twilight zone must be able to survive cold temperatures, an increase in water pressure and dark waters. There are no plants in this zone, because there is not enough light for photosynthesis. Octopus, squid, and the hatchet fish are some of the animals that can be found in this zone. Many animals in this zone have thin bodies that help them hide from predators.
Other organisms in this zone are red or black in color to better blend in with the dark water. When a predator is looking up at them, they are so thin that they are hard to see! Some fish, like viper fish and the hatchet fish, have sharp fangs and large mouths that help them catch food.
Other fish have large eyes that help them see in the dark waters. Most of the fish in this zone don't chase their food. They either stalk it or wait for it to float or swim by. The name abyss comes from a Greek word meaning "no bottom" because they thought the ocean was bottomless. Three-quarters of the area of the deep-ocean floor lies in this zone. The water temperature is constantly near freezing and only a few creatures can be found at these crushing depths.
The deepest zone of the ocean, the hadalpelagic zone extends from 19, feet 6, meters to the very bottom at 36, feet 10, meters in the Mariana Trench off the coast of Japan. The temperature is constant at just above freezing. The weight of all the water over head in the Mariana Trench is over 8 tons per square inch.
Even at the very bottom life exists. In , tiny single-celled organisms, called foraminifera, a type of plankton, were discovered in the Challenger Deep trench southwest of Guam in the Pacific Ocean. The deepest a fish have ever been found, Abyssobrotula galatheae , was in the Puerto Rico Trench at 8, meters 27, feet.
The sea surface temperature "follows the sun". Oceans consist of 3 Zones, which are classified by the amount of light that passes through. The top most meters of ocean is called the Euphotic Zone or called the 'Sunlight' Zone. Sunlight travels easily throughout this Zone of the Ocean and plant-life flourishes in this Zone and is immensely widespread. Sunlight dissipates quickly as the depth increases, and very little light penetrates throughout this zone.
The Aphotic Zone sometimes called the 'Midnight' Zone , exists at depths below meters. No sunlight reaches this zone at all. It is completely absent of light; hence the slang term for it - 'Midnight' Zone. The sunlight zone is not a real zone. Butt the day light zone is the top of the ocean that most of the sunlight gets to.
The sunlight zone. Most animal and plant life use the sun to stay alive. The most plant life is found here. There is life in all zones in the ocean but the sunlight zone has the most. The photic zone of the ocean is the surface of the ocean that receives sunlight. The epipelagic zone is the region in the ocean that is exposed to a sufficient enough amount of sunlight to allow photosynthesis to occur.
It is the sunlight Zone. Photic Zone: part of the ocean that receives sunlight Aphotic Zone: area in an ocean where sunlight does not reach and photosynthesis does not occur. Aphotic zone. Sunlight zone Twilight zone Midnight zone. There are no plants in the ocean "twilight zone.
There is not enough light for photosynthesis to take place; therefore, no plants live in this zone, and food is pretty scarce. Rearrange the following zones as seen in the root in vertical section and choose the correct option Which of these will be affected most due to an oil spill in an ocean?
Which one is most efficient converter of sunlight? Which one is most efficent converter of sunlight? Are these Answers Helpful? Yes No. Disclaimer The questions posted on the site are solely user generated, Doubtnut has no ownership or control over the nature and content of those questions.
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