Question

a human body has only one of which of the following?
(1) kidney
(2) lung
(3) liver
(4)Retina​

Answer 1

Answer :- (3) Liver .

Explanation :-

• Kidney :- A human body has two kidneys . They remove waste and extra water from the blood .
• Lung :- A human body has two lungs .They helps us in breathing.
• Liver :- A human body has only one liver . Liver helps us in digestion of food . { Second largest organ in our body after skin . }
• Retina :- A thin layer of tissue present in both eyes .

therefore, we can conclude that, Option (3) Liver is correct answer .

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Answer 2

Answer:

• According to the given question the right answer is (3) liver because human body has only one liver. It helps to digest undertaking food.

• We have two kidneys, they help to give up waste products from the body.

• Yes we have also two lungs, for them we can breathe.

• Two eyes contain two retinas, they make everything visible.