The correct answer for fill in the blanks is Balanced.
Tight rope walker does not want to change his position to make sure that the force acting on him is balanced. A slight change in the position of the rope walker will make the rope move and this movement will result in the unbalance the force exerted on the walker. So, to make the force balance he will not change his position.
Answer: False
They can't really control if they are mutating or not
Small population size is your answer mate.
The ears are lateral to the nose.