Q8 of 234 Page 284

Name two animals having eyes:

(a) on the sides of the head.


(b) at the front of the head.

(a) two animals having eyes on the side of the head are rabbit and deer.

(b) The two animals having eyes at the front of the head are Tiger and Lion.


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6

What are the advantages of having two eyes instead of just one?

 7

Explain clearly why, a person who has lost the sight of one eye is at a disadvantage compared with the normal person who has two good eyes.

 9

Among animals, the predators (like lions) have their eyes facing forward at the front of their heads, whereas the animals of prey (like rabbit) usually have eyes at the sides of their head. Why is this so?

 10

Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.

(a) Which of these persons can donate eyes?


(b) Which of these persons cannot donate eyes?