Biology

The correct answer are:

B.Birds

D.Crocodiles

1. Analyze each option based on the phylogenetic tree:

Amphibians: There is no indication of the “Eggs with shells” trait on the branch leading to amphibians. Amphibians typically lay eggs in water and their eggs do not have hard shells. So, amphibians do not have eggs with shells.

Birds: The “Eggs with shells” trait is on the branch leading to birds. Birds are known for laying eggs with hard, calcium - based shells. So, birds have eggs with shells.