Answer
Verified
430.2k+ views
Hint: Deep regions of the ocean are dark as a negligible amount of sunlight reaches there. The ocean is divided into three zones depending on the depth and availability of light namely euphotic, disphotic and aphotic zone.
Complete step by step answer: Marine plants and animals living at different depths of ocean constitute the marine ecosystem and these regions do not get adequate sunlight and these plants are adapted to survive the UV component of solar radiations. In the case of deep-sea dwellers, sunlight is inadequate for photosynthesis. The deepest region of the ocean is entirely dark. Plants like Kelps, seagrasses and seaweed live in deep-sea regions. The intensity of light is highest at the surface and decreases as we move more deep inside the ocean but these marine plants at different depths are adapted to survive using UV components of solar radiation.
Hence, the correct answer is option A.
Additional information: Ocean is divided into three zones according to depth and availability of light. Euphotic or sunlight zone: upper 200 metres of the ocean, and it is home to a vast variety of aquatic species. Twilight zone or disphotic zone: 200-1000 metres. The sunlight decreases as depth increases. Photosynthesis is very less possible in this zone and Aphotic zone: Below 1000 metres. There is no sunlight, it’s complete darkness.
Note: Plants, animals and some algae inhabiting the deepest regions of oceans where no sunlight is present, are able to survive due to the adaptations that help them to utilize the UV component of sunlight. Also, blue light penetrates deep inside the ocean because of its low wavelength.
Complete step by step answer: Marine plants and animals living at different depths of ocean constitute the marine ecosystem and these regions do not get adequate sunlight and these plants are adapted to survive the UV component of solar radiations. In the case of deep-sea dwellers, sunlight is inadequate for photosynthesis. The deepest region of the ocean is entirely dark. Plants like Kelps, seagrasses and seaweed live in deep-sea regions. The intensity of light is highest at the surface and decreases as we move more deep inside the ocean but these marine plants at different depths are adapted to survive using UV components of solar radiation.
Hence, the correct answer is option A.
Additional information: Ocean is divided into three zones according to depth and availability of light. Euphotic or sunlight zone: upper 200 metres of the ocean, and it is home to a vast variety of aquatic species. Twilight zone or disphotic zone: 200-1000 metres. The sunlight decreases as depth increases. Photosynthesis is very less possible in this zone and Aphotic zone: Below 1000 metres. There is no sunlight, it’s complete darkness.
Note: Plants, animals and some algae inhabiting the deepest regions of oceans where no sunlight is present, are able to survive due to the adaptations that help them to utilize the UV component of sunlight. Also, blue light penetrates deep inside the ocean because of its low wavelength.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you graph the function fx 4x class 9 maths CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE