BIOL132 BIRDS

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Last updated: January 25, 2023

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First submitted	January 21, 2023
Times taken	2
Average score	88.9%
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question	Answer
what are birds feathers made of ?	keratin
red orange and yellow plumage is produced using ........... which can only be obtained the from ....	carotenoids, diet
^ This does not apply to parrots, makaws, lorikeets and cockatoos, their red/pink/orange/yellow colour comes from psittacofulins which .... produce	they
birds have .... colour receptors in their eyes	four
turacoverdin is the only true ..... pigment	green

question	Answer
brown/black is ...... based colouration	melanin
...... can also provide structural stability to the wings	melanin
what is the genus of the common kingfisher ?	alcedo
sexual dichromatism is difference in colouration between different .....	sexes