Why is this “gifted sister” discouraged from reading and writing

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

Some substances but not other can cross the (blank) membrane of a cell