Question

question 15
part c
according to the cladogram, how many common ancestors do roaches and the most closely related segmented animal that you identified in part b share?
1
2
3
4
a
b
c
d

Explanation:

In a cladogram, each branch point represents a common ancestor. To find the number of common ancestors between roaches and their most closely - related segmented animal (which, from the cladogram structure, we assume is beetles or moths, but based on the cladogram's branching pattern for roaches:

• The first common ancestor is at the "segmented bodies" branch point.
• The second common ancestor is at the "exoskeletons" branch point.
• The third common ancestor is at the "wings" branch point.

Answer:

C. 3