Question

a fossilized fish is found that has jaws but no true bones. where does this fossil belong on the cladogram?
a
b
c
d

Explanation:

The cladogram shows traits branching off. Organisms with jaws are in the group that branches from the common - ancestor at the "Jaws" node. Since the fossil has jaws but no true bones, it should be in the branch that has jaws but is before the "Bones" trait branches off.

Answer:

B