Question

Which of the following helps cow to differentiates different colours?
A. Eyes
B. Ears
C. Nose
D. Skin

Answer 1

Hint: Cow is a kind of domestic animals. Cows are usually treated as livestock to get the desired quantity of milk, meat, and also their skin is used to make leather. They use their vision power to differentiate between different colour like that of between red and green.

Step by step answer:The presence of pigment tapetum lucidum in cows, allow them when they look into the light of car their eyes shine. The tapetum is an area of chartreuse pigment that is located just below the retina at the level of the choroid, that occurs towards the back of the cow's eyeball.
Eyes:- Cows can see and observe colour due to their eyes but the distribution of rod and cone cells in the cow's retina is different from that present in humans so that cows do not observe colors the same way humans do. The cow can differentiate between colours like red and green, blue and yellow, black and white.
Ears:- Cow has two ears but both the ears can move in a different direction. Due to this fact cows can listen to more sounds and detect sound from two different sources at the same time. Ears of the cow are used as a food for dogs.
Nose:- cow has a highly sensitive nose that allows them to detect smell even a few kilometers away. They take their food on the basis of the smell of the food. They have one more smell sensing receptor that is vemerosal organ that is present on the roof of the mouth.
Skin:- skin of cow allow them to escape the heat. It allows them to survive in adverse conditions. The skin of cows also used in the preparation of leather.
Hence option A is correct.

Note: The difference between a cow and human eyes is the shape of the pupil, that is oval in a cows eyeball and round in a human eye. The iris of a cow eyeball is mostly brown in colour while human irises come in a variety of colors. Human eyes also have a higher number of attached muscles than a cow eyeball.