AP BIOLOGY

ECOLOGY

BIOMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which describes the deep-water zone?
A
It gets a lot of sunlight
B
It get no sunlight
C
No fish live there
D
Cattails and rushes grow there
Explanation: 

Detailed explanation-1: -The depths from 1, 000-4, 000 meters (3, 300-13, 100 feet) comprise the bathypelagic zone. Due to its constant darkness, this zone is also called the midnight zone. The only light at this depth (and lower) comes from the bioluminescence of the animals themselves.

Detailed explanation-2: -The aphotic zone exists in depths below 1, 000 meters. Sunlight does not penetrate to these depths and the zone is bathed in darkness.

Detailed explanation-3: -The ocean is very, very deep; light can only penetrate so far below the surface of the ocean. As the light energy travels through the water, the molecules in the water scatter and absorb it. At great depths, light is so scattered that there is nothing left to detect.

Detailed explanation-4: -Because water strongly absorbs light, sunlight penetrates only to depths of about 200 meters (656 feet), This upper layer of the ocean is known as the sunlit, or euphotic, zone.

Detailed explanation-5: -Euphotic Zone (Sunlight Zone or Epipelagic Zone) The upper 200 meters (656 feet) of the ocean is called the euphotic zone.

There is 1 question to complete.