The structure above represents a quill feather. The structure labelled 'M' is the

quill

rachis

superior umbilicus

inferior umbilicus

aftershaft

Correct Option

No explanation available

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1 year ago

L after shaft
M superior umblicle
N quill
O inferior umblicles

9 years ago

yes ooo

1 year ago

The diagram has not shown on my phone

1 year ago

why option c

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20th June, 2026

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21st May, 2026

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