Question

ordering 1 points
below are species from a simplified phylogenetic tree of select reptiles and dinosaurs. starting with dinosaurs and birds, order the species from most to least
closely related based on the data in the phylogenetic tree provided.
1 crocodiles
2 pterosauromorpha
3 turtles
4 lizards and snakes
most related to dinosaurs and birds
least related to dinosaurs and birds

Explanation:

Phylogenetic trees show evolutionary relationships. The closer the branches, the more related the species. Dinosaurs and birds are closely related. Crocodiles share a more recent common ancestor with them compared to others. Pterosauromorpha is next, then turtles, and lizards/snakes are the least related.

Answer:

1. Crocodiles, 2. Pterosauromorpha, 3. Turtles, 4. Lizards and Snakes