Can anyone me with the second and third problems on this page i already put the scientific method in order

Describe how alleles and genes are related

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 .

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?