Question

write four important features of a bird​

Answer 1

Answer:

Defining characteristics of modern birds also include:

Feathers.

High metabolism.

A four-chambered heart.

A beak with no teeth.

A lightweight but strong skeleton.

Production of hard-shelled eggs.

Explanation:

hope this helps.. if it did... pleaaase mark me as brainliest :)

Answer 2

Explanation:

i) Feathers.

ii) Wings.

iii) lightweight, rigid skeleton.

iv) unique respiratory system.