Ascientist is examining a single-celled organism with no nucleus that can be found in extreme environments. what kingdom does this organism belong to?

a. animalia
b. archaebacteria
c. eubacteria
d. protista

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

Which element is found in both dna and proteins

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 .