72.7k views
2 votes
Which of these structures contribute to the ability of birds to fly? Check all that apply.

wings
light, nearly hollow bones
solid, heavy bones
contour feathers
air sacs connected to lungs
three-chambered heart
large chest muscles

User Zzandy
by
4.8k points

2 Answers

3 votes

Answer:

yeah its A, B, D, E, G

Explanation: just did on edge 2021

User Blablabla
by
4.3k points
4 votes

Answer:

A, B, D, E, G

Step-by-step explanation:

found out the hard way, edge. 2021

User Origineil
by
4.5k points