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EH: 1.4 (2/16) Version B
By Alex Kovalik (he/him/his)
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Last updated over 2 years ago
8 questions
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Objective:
SWBAT make inferences about the relationships between organisms by interpreting evolutionary trees.
Do Now:
Question 1
1.
Above are the bones of two imaginary species. Look at the body structures for both species, then select which body structures these two species share.
[Skull, Backbone, Tail, Front limb, Back limb]
Question 2
2.
Do you think the two species from the Do Now have a common ancestor? Explain.
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
"I think that the two speces are related. I think that they are related because ...
Similar structures I see are ... "
Guided Notes:
Question 3
3.
Complete the guides notes below
visibility
View drawing
Practice:
Do:
Open the
Sim
in
Free Explore mode
and press TREE to open Tree View.
Navigate through the evolutionary tree and press each of the “i” icons on the tree branches as you go.
Read the text from each icon until you find the “i” icon that has the body structure you are exploring.
Follow the tree branches to the right of this icon to find two living species that have this body structure.
Try to find species that are very different from one another by expanding branches of the evolutionary tree at the bottom of the screen.
Tips:
The “i” icons are the orange and white circles with the letter “i” in the center.
Navigate through the evolutionary tree by pressing on rows in the Tree Navigation window or by pressing the arrows in the main window.
Question 4
4.
Name the two species you found that share the body structure. (list)
1. Rabbit
2. Elephant
visibility
View drawing
Question 5
5.
Do you think the two species you identified have a common ancestor? Explain
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
"I think that the species have a common ancestor because ... "
(THINK: What similar stuctures do you know exist between an Elephant and Rabbit)
Exit Ticket:
Use the diagram below to answer the following questions:
Question 6
6.
What are the descendants in this diagram? (list)
(THINK: who are the newest species presented on the table)
Animals with the traits listed unde the common ancestor population
Humans
Whales
Whales and Humans
Question 7
7.
What body structures did the common ancestor have? (list)
(THINK: who are the oldest species presented on the table)
Backbone, Lungs, Structures for producing milk
Backbone, Lungs, Ability to walk upright
Backbone, Radius/Ulna, Tail flukes for swimming
Question 8
8.
How can you use structural evidence to help support why humans and blue whales are related species?
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
"I think that the two speces are related. I think that they are related because ...
Similar structures I see are ... "
(THINK: Read the information below each species,why do you think the Whale and Human are related?)