• Construct a cladogram using the data in the table below. • Map the features onto the cladogram. • Take a photo of your cladogram to upload, or scan it for upload. DERIVED TRAITS TAXON | Jaws | Lungs | Amniotic Egg | Gizzard | Feathers | Dorsal Fin | Mammary Glands | Keratinous Scales Lamprey | - | - | - | - | - | - | - | - Perch | + | - | - | - | - | + | - | - Salamander | + | + | - | - | - | - | - | - Lizard | + | + | + | - | - | - | - | + Crocodile | + | + | + | + | - | - | - | + Pigeon | + | + | + | + | + | - | - | + Dolphin | + | + | + | - | - | + | + | - Mouse | + | + | + | - | - | - | + | -
Added by David H.
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First, we need to identify the shared derived traits for each group of organisms. Here's a possible arrangement: - Lamprey: None - Perch: Jaws - Salamander: Jaws, Lungs - Lizard: Jaws, Lungs, Amniotic Egg - Crocodile: Jaws, Lungs, Amniotic Egg, Dorsal Fin - Show more…
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