What class of viruses can convert their rna genome into a dna copy using reverse transcriptase?

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 .

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi