B. a seashell on the ocean floor
Answer:
it provides the wing's downstroke
Explanation:
the function of the large, sheetlike pectoralis muscles of a bird is that it provides the downstroke of the wings.
It is mountain I feel like you should’ve known that
A Tiger can run as in my research about 30 - 40 miles per hour Hope this helps:) mark as best if u want:)