Professor Mary tests children's reasoning abilities. She changes the shape of a mound of clay in front of a child and asks if the quantity of clay has changed. Professor Mary is investigating cognitive abilities using a task.

Conservation tasks

Explanation:Conservation tasks are task which are meant to establish if the child understands that some items features will remain the same even if it is changed in some way such as when you change the shape , length or alter it in any other ways for example the quantity of mud won't change just because you have shaped it differently,at some age children don't understand this term

answer; ///it examines the interaction between genetics and culture in shaping human biology;

because he is that the right