Question

Both reptiles and birds share a number of anatomical features which led biologists to believe that birds descended from reptiles. What are those features?

• A. Presence of an egg tooth in the young at the time of hatching
• B. Lower Jaw made up of five parts
• C. Presence of only one occipital condyle
• D. All the above

Answer 1

Answer: (D)

All the above

Since crocodiles plummet from a typical precursor with dinosaurs, they can give a helpful developmental correlation with feathered creatures. (In spite of their appearance, flying creatures are more firmly identified with crocs than reptiles are.). Fossilized skulls of child dinosaurs demonstrate a similar example they take after grown-up winged animals.

So, the correct option is 'All the above'.