Question

the largest organ of our body

Answer 1

the largest internal organ is liver with approx 1.6kg or 3.5 pounds and the largest external organ is skin.

Answer 2

                                                 ==============
                                                       ORGAN
                                                 ==============

✮ An organ is a group of tissues.the function 

✮It performs the functions of the body.

✮ An internal organ is an organ present inside of a body.
         eg; liver, heart, lungs, etc...

✮An external organ is an organ present outside or on the surface of the body.
         eg; ear, eyes, skin, etc...

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Therefore,

      The largest internal organ of a body is liver.

It has the size of between 16 - 17 cm.

whereas,

The largest external organ of a body is skin.

It has the size of between 1.5-2.0 square meters

But skin is considered as the (overall) largest organ of the body.