PT9.S2.Q11 - Recently discovered fossil evidence casts doubt

KGSpecter

This was a difficult question about dinosaurs, fossil evidence and their argued relationship with reptiles. Many users chose AC D) but E) is correct. I can't seen to figure out what the "two present-day" phenomena are, can anyone help a gal out? THANK YOU

Admin note: edited title

drbrown2

Reptiles vs. Warm-blooded animals

The whole stimulus is presenting evidence that dinosaurs share all these features with warm blooded animals (hollow bones, room in mouth for breathing while eating, pattern of growth typical of warm blooded animals, etc)