A Gradual Release Activity How to do a Cladogram A Gradual Release Activity

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

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.

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

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

Group Practice Answers C. Ants Fly Spiders Worms Wings 6 Legs Legs Cells   Cells Legs 6 Legs Wings Worm X Spider Carpenter Ants Fly

Individual Example: Answers Monkeys Humans Lizard Snake Opposable Thumbs Hair Legs Eyes   Hair Legs Opposable Thumbs Eyes Human  X X Snake Monkeys Lizard X