How did mendel make the f1 generation plants

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 

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

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun