Constructing phylogenetic tree

Perhaps this would help?

https://biology-forums.com/index.php?topic=3074.0

No, that won't work, that's a cladogram, not a phylogenetic tree.



In this highly simplified phylogeny, a speciation event occurred resulting in two lineages. One led to the mosses of today; the other led to the fern, pine, and rose. Since that speciation event, both lineages have had an equal amount of time to evolve. So, although mosses branch off early on the tree of life and share many features with the ancestor of all land plants, living moss species are not ancestral to other land plants. Nor are they more primitive. Mosses are the cousins of other land plants.

So when reading a phylogeny, it is important to keep three things in mind:

1) Evolution produces a pattern of relationships among lineages that is tree-like, not ladder-like.



2) Just because we tend to read phylogenies from left to right, there is no correlation with level of "advancement."



3) For any speciation event on a phylogeny, the choice of which lineage goes to the right and which goes to the left is arbitrary. The following phylogenies are equivalent:

Sorry. I suppose the least similar one will be to the far right. This requires a bit of research, so your best bet would be to research all seven organisms.