This phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree?

The phylogenetic tree shows the evolutionary relationship between organisms.

Explanation:

1- given that rRNA data were used, then only expressed carachteristics (genes) have been considered

2- two organisms in different branches with a common origin, have a common ancestor

3- branches lenght may depend or not on evolutionary time, depends on the used algorithm

the form of energy changes and the total energy increases0l

enzyme speed up the reactions