Respuesta :
Birds and Reptile
Explanation:
Birds and reptiles share a branch on the chordate phylogeny tree because
a. They share similar traits.
Birds and reptiles are vertebrates and they are thought to originate from a common ancestor. This is because of the presence of certain common traits like keratinous scaly wings, similarities in skeletal structure , way of reproduction, similarities in circulatory system such as nucleated red blood cells etc.
Answer:
a) they share similar traits
Explanation:
birds and reptiles both have vertebrae, scales, and lay eggs