asked 232k views
3 votes
Which structures in birds and mammals have a similar function?

a. Air sacs and diaphragm
b. Down feathers and underhair
c. Albumen and mammary gland
d. Crop and incisors

1 Answer

2 votes

Answer:

Air sacs and diaphragm

Step-by-step explanation:

answered
User Samuel R
by
8.0k points
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