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37 votes
37 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

User David Schuler
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1 Answer

16 votes
16 votes

Answer:

Air sacs and diaphragm

Step-by-step explanation:

User Death Metal
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