Which trace fossils are created when a worm travels through the soil and the impression is filled with hardened sediment?

Differentiation of cells changes the nucleic information. true false

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 .

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation