EH 2.4 (3/3)

Last updated over 2 years ago

5 questions

Finish the sentence from the question below. Use the following words in your answer: Elomeryx, Acanthostega, common ancestor, time, change, and body structures.

The giraffe is much more different from _______  than it is from _______  because _______ ”

Open Vertebrates Mode of the Sim, press the TREE button to open Tree View.

Follow the instructions below to open two different pairs of Study Windows, then answer the questions that follow.
Phases A Instructions: Comparing Giraffe and Elomeryx
Navigate to the Artiodactyls section of the evolutionary tree.
Find the Elomeryx fossil in the Fossil Collection. (Optional: Find its location on the evolutionary tree and place it there.)
Open the Study Windows for Giraffe and Elomeryx.
Tip: You can open fossil species’ Study Windows from the Fossil Collection.
Read the species descriptions and compare the images in the Structures Tab.

Phase B Instructions: Comparing Giraffe and Acanthostega
Navigate to the Vertebrates section of the tree
Find the Acanthostega fossil in the Fossil Collection. (Optional: Find its location on the evolutionary tree and place it there.)
Navigate to the Artiodactyls section of the evolutionary tree.
Open the Study Windows Giraffe and Acanthostega.
Tip: You can open fossil species’ Study Windows from the Fossil Collection.
Read the species descriptions and compare the images in the Structures Tab.

How long ago did Elomeryx and Acanthostega live?

Which structures are different between one of the fossil species you investigated and giraffes? Why do you think they have different structures?
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

Which fossil species has more different body structures compared to the giraffe? Why do you think it is built differently?
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

Which fossil species was separated from the giraffe in the more distant past (longer ago)?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the chronological difference between animal species with a common ancestor based on body structures