Answer
Verified
439.5k+ views
Hint: Blind spots typically occur due to the location of the optic nerve within the retina. Predator animals usually have a big blind spot since both their eyes look in the forward direction to hunt their prey while the prey has fewer blind spots since they need to be aware of a coming predator from all sides.
Complete answer:
A blind spot is a small portion of the visual field of sight that corresponds to the position of the optic nerve head within the retina. There are no photoreceptors (i.e., rods or cones) in the optic disk, and therefore, there is no image detection in this area and the animal cannot see in that region.
Squid and octopus have evolved an eye layout that is remarkably similar to our own. They also have large eyes, with a lens, iris, which provide them with excellent vision in all directions. Like humans, the Octopus has a single layer of receptor cells that sends images back to the brain through the optic nerve but the Octopus doesn’t have blind spots because their optic nerves do not pass through the receptors but instead from behind them. So even the light coming from behind the eyes will interact with optic nerves which will send signals to the brain and the octopus will be able to see all around it.
Hence, Option (C) is correct.
Note:
To answer this question, we must be aware of the working of the eye and how blind spots are formed due to the lack of photoreceptors. Fishes, Ostriches, and Rats have eyes on the sides of their heads such that all of them have a blind spot at some point in their vision.
Complete answer:
A blind spot is a small portion of the visual field of sight that corresponds to the position of the optic nerve head within the retina. There are no photoreceptors (i.e., rods or cones) in the optic disk, and therefore, there is no image detection in this area and the animal cannot see in that region.
Squid and octopus have evolved an eye layout that is remarkably similar to our own. They also have large eyes, with a lens, iris, which provide them with excellent vision in all directions. Like humans, the Octopus has a single layer of receptor cells that sends images back to the brain through the optic nerve but the Octopus doesn’t have blind spots because their optic nerves do not pass through the receptors but instead from behind them. So even the light coming from behind the eyes will interact with optic nerves which will send signals to the brain and the octopus will be able to see all around it.
Hence, Option (C) is correct.
Note:
To answer this question, we must be aware of the working of the eye and how blind spots are formed due to the lack of photoreceptors. Fishes, Ostriches, and Rats have eyes on the sides of their heads such that all of them have a blind spot at some point in their vision.
Recently Updated Pages
Who among the following was the religious guru of class 7 social science CBSE
what is the correct chronological order of the following class 10 social science CBSE
Which of the following was not the actual cause for class 10 social science CBSE
Which of the following statements is not correct A class 10 social science CBSE
Which of the following leaders was not present in the class 10 social science CBSE
Garampani Sanctuary is located at A Diphu Assam B Gangtok class 10 social science CBSE
Trending doubts
A rainbow has circular shape because A The earth is class 11 physics CBSE
Which are the Top 10 Largest Countries of the World?
Fill the blanks with the suitable prepositions 1 The class 9 english 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
Give 10 examples for herbs , shrubs , climbers , creepers
Who gave the slogan Jai Hind ALal Bahadur Shastri BJawaharlal class 11 social science CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Why is there a time difference of about 5 hours between class 10 social science CBSE