Evolutionary Trees

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Phylogenic Trees

​(Evolutionary Trees)

Open Ended

Which two animals do you think are most closely related and why?

Multiple Choice

Who shares the most DNA with person IV-1?

• I-1

• II-3

• III-5

• IV-2

Multiple Choice

The lower circle represents the common ancestor between brown bears and polar bears. How long ago did it live?

• 10 million years ago

• 3 years ago

• 3 million years ago

• 15 million years ago

Multiple Choice

Which organism is most closely related to the raccoon?

• Red Panda

• Giant Panda

• Polar Bear

• Impossible to determine

​Scientists form species groups based on relatedness

​The most probable trees are the ones with the least steps

Multiple Choice

Which of the trees below is most probable?

• a

• b

• c