Question

Help me please - photo under or above lol-

Answer 1

The tongue has more sensory structure because not only can you taste but you can feel as well with the textures of the food you put into your mouth

Answer 2

Maybe for the first the hand because there are so many joints that do so many movements and functions.

For the second, the tongue because there are so many taste buds that need to sense and taste and move.
I hope that helps, that's what I remember from elementary school. XD