week 1 - trees Flashcards
1
Q
What do nodes represent on a tree?
A
Events/ Speciation
2
Q
What do branches represent?
A
Evolutionary divergence or time
3
Q
What does the root represent?
A
Last Common ancestor of all the species in the phylogeny
4
Q
What is co-speciation?
A
Where one speciation of one species dictates and interacts with another speciation of another species.
often seen through parasite & host relationships
as the host speciates, so does the parasite, but the parasite no longer speciates with other parasite species as they will no longer be in connection/meet.
