questionedithistorytranslations

Which part of a dog's or a cat's eye reflects the light?

conjuctiva
pupil
iris
a layer behind retina
Many vertebrates, especially nocturnal ones, have the reflecting layer called the tapetum lucidum. It reflects the light back through the retina, increasing the amount of light available to the photoreceptors.
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Answers by country

conjuctiva
pupil
iris
a layer behind retina
answers
flagAustralia
3%
8%
25%
62%
83
flagRomania
5%
30%
5%
60%
20
flagthe United States
8%
16%
20%
54%
668
flagRepublic of Ireland
3%
19%
22%
54%
31
flagthe United Kingdom
6%
14%
27%
50%
288
flagSweden
15%
10%
25%
50%
20
flagCzech Republic
0%
27%
22%
50%
18
flagthe Netherlands
3%
21%
27%
48%
33
flagthe Philippines
21%
18%
12%
45%
33
flagIndia
9%
23%
22%
44%
303
flagUnknown
8%
8%
40%
44%
25
flagSwitzerland
24%
24%
5%
43%
97
flagPoland
12%
18%
26%
42%
19361
flagGermany
23%
27%
7%
39%
743
flagPakistan
12%
22%
22%
38%
31
flagSouth Africa
5%
31%
21%
36%
19
flagCanada
13%
22%
30%
33%
36
flagGreece
0%
26%
40%
33%
30
flagItaly
18%
22%
27%
31%
22
flagAustria
27%
36%
5%
30%
111

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