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2

3

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have very similar morphologies.

belong to the same order.

are both members of the order Carnivora.

share a very recent common ancestor.

Hippopotamus 

Baleen Whale

Grazing Mammals

Camels

A and B

B and C

C and D

D and E

morphology

molecular

fossil

synapomorphies

Species P and Q are equally related to species T.

Species P and T do not share a common ancestor.

Species S evolved from species R.

Species S is more closely related to species T than to species R.

crayfish

grasshopper

perch

frog

Giant panda

Dog

Lesser panda

Sun bear

Lesser pandas are more genetically similar to giant pandas than they are to raccoons

Brown bears are more genetically similar to giant pandas than they are to sun bears

Lesser pandas are more genetically similar to raccoons than they are to giant pandas

The bear species are all more genetically similar to dogs than they are to giant pandas

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2

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