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A Gradual Release Activity
How to do a Cladogram A Gradual Release Activity
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How to do a Cladogram Step 1: Determine the similarities and the differences between the species you are mapping. Place a check mark next to each feature that the species has. Has backbone Has bones Has four limbs Has feathers Osprey Alligator Bull Shark Snook
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How to do a Cladogram Step 2: Add species to the cladogram based on how many things they have in common – the most boxes checked typically goes on the right and the one with the least boxes goes on the left.
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Osprey X X Alligator X Bull Shark Snook Has backbone Has bones
Has backbone Has bones Has four limbs Has feathers Osprey X X Alligator X Bull Shark Snook Alligator Osprey Snook Bull Shark
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Step 3: Last, label underneath the cladogram what those species have in common, using the table you created. Alligator Osprey Snook Bull Shark Has feathers Have four limbs Have bones Have backbones Has backbone Has bones Has four limbs Has feathers Osprey X X Alligator X Bull Shark Snook
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Group Practice Answers
C. Ants Fly Spiders Worms Wings 6 Legs Legs Cells Cells Legs 6 Legs Wings Worm X Spider Carpenter Ants Fly
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Individual Example: Answers
Monkeys Humans Lizard Snake Opposable Thumbs Hair Legs Eyes Hair Legs Opposable Thumbs Eyes Human X X Snake Monkeys Lizard X
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