Answer:
Explanation:
Organisms from the same genus must have features that can make them part of a same group like anatomic features, however if the organisms cannot produce fertile offspring if they interbred each other they are not from the same species.
The change in environment
Because they need to adapt to live
Open Clusters: A, B, F
Global Clusters: C, D, E
I just got them all correct
most common samples used today Blood and Hair