EH 3.2 (3/10) Version B

Last updated over 2 years ago

7 questions

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.

EH 3.2 (3/10) Version B

Last updated over 2 years ago

7 questions

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.

What evidence do you have?

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

EH 3.2 (3/10) Version B

EH 3.2 (3/10) Version B

What evidence do you have?

What evidence do you have?

Which of these two species belongs in Location 1? (Hint: Investigate hind limbs and skulls.)

What evidence do you have?

Which of these two species belongs in Location 2? (Hint: Investigate limb sizes.)

Which of these two species belongs in Location 3? (Hint: Investigate limb sizes.)

Which of these two species belongs in Location 4? (Hint: Investigate hind limb structures.)

What evidence do you have?

Which of these two species belongs in Location 1? (Hint: Investigate hind limbs and skulls.)

Which of these two species belongs in Location 2? (Hint: Investigate limb sizes.)

Which of these two species belongs in Location 3? (Hint: Investigate limb sizes.)

Which of these two species belongs in Location 4? (Hint: Investigate hind limb structures.)