1) Dinosaurs did not become extinct not all of them, that is (2) Most scientists who study fossils now believe that some small predatory dinosaurs called theropods evolved into birds, (3) in a number of striking ways, birds resemble their probable dinosaur ancestors. (4) Uke theropods, birds have light, hollow bones (crucial to bird flight), (5) Theropod forelimbs could pivot similarly to bird wings (6) Theropods stood erect on two feet, with their ankles held above the ground. (7) Birds stand the same way.) Also, theropods had four toes on each foot three front toes pointing forward and one rear toa pointing backward. (9) 5o do many birds (10) Claws are another shared feature (11) In addition, like all other dinosaurs, theropods laid eggs. (12) Some even had feathers The main patterns of organization of the selection are
A definition example and cause effect
B comparison and list of items
C cause effect and list of items.