Why are birds considered dinosaurs? What characteristics do birds have that non-avian (not a bird) theropod dinosaurs had?

Fossil evidence also demonstrates that birds and dinosaurs shared features such as hollow, pneumatized bones, gastroliths in the digestive system, nest-building and brooding behaviors.

Explanation:

your answer should be c) enjoy!

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.