Please answer this thanks!

Natalie had random hand movements when she was two months old. when she was six months old, she used to grab a block with her whole hand. now at the age of ten months, she can grasp the same block with her thumb and forefinger. this sequence of growth in her hand and finger movements is according to the pattern.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

About how much of the cell mass is watet