EH 3.2 (3/10) Version B

Posljednje ažuriranje about 3 years ago

Goal: Place all cetacean species onto the evolutionary tree by determining which species are more closely related.

Do:

• Open Cetaceans mode of the Sim, press TREE to open Tree View, and navigate to the Cetaceans branch of the tree.

• Study the Blue Whale and Orca structures.

• Read the first question below and place a fossil species into Location 1 (see image above), then repeat this for each of the locations.

• For each location, choose between the two possible species given in the question.

Tip:

• Use the Structures tab in the Study windows and the “i” icons to help you make your decisions.

null

Which species is Dorudon more closely related to: the blue whale or Ambulocetus? Which diagnostic structure(s) could you use to show this?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the environmental difference between animal species with a common ancestor based on body structures