1. Name five characters possessed by birds. Which are apomorphies? Which are plesiomorphies? 2. Name two characters possessed by reptiles/birds (the group comprised of turtles, lizards, snakes + crocodiles + dinosaurs + birds; including their common ancestors). Which is an apomorphy? Which is a plesiomorphy? 3. Name four characters possessed by mammals. Which are apomorphies? Which one is a plesiomorphy?
