Multiple choice

Which feature is common between birds and crocodiles?

  1. Presence of four chambered heart

  2. Presence of hair

  3. Presence of oil glands

  4. Presence of beak

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Both birds and crocodiles have a four-chambered heart. This is an example of convergent evolution or shared ancestral traits in archosaurs.