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Card 6

Front

Why do birds have no teeth?

Back

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Card 7

Front

Avian digestion sites

Back

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Card 8

Front

Features of the crop

Back

Preview of the front of card 8

Card 9

Front

features of the gizzard

Back

Preview of the front of card 9

Card 10

Front

what does the protoventriculus do?

Back

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Card 11

Front

how is the forelimb modified?

Back

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Card 12

Front

Types of feathers on the forelimb

Back

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Card 13

Front

wings in flight

Back

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Card 14

Front

features of pennaceous feather

Back

Preview of the front of card 14

Card 15

Front

Flight muscles of the keel

Back

Preview of the front of card 15
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