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%
24%
63%
82
flagRomania
5%
30%
5%
60%
20
flagRepublic of Ireland
3%
19%
22%
54%
31
flagthe United States
8%
16%
20%
52%
644
flagthe United Kingdom
6%
13%
27%
51%
280
flagthe Netherlands
3%
22%
22%
51%
31
flagCzech Republic
0%
27%
22%
50%
18
flagSweden
15%
10%
26%
47%
19
flagthe Philippines
21%
18%
12%
45%
33
flagIndia
9%
23%
22%
44%
299
flagUnknown
8%
8%
40%
44%
25
flagPoland
12%
18%
26%
42%
19208
flagSwitzerland
25%
25%
5%
41%
94
flagSouth Africa
5%
35%
11%
41%
17
flagGermany
24%
27%
7%
39%
704
flagPakistan
12%
22%
22%
38%
31
flagGreece
0%
26%
34%
38%
26
flagCanada
13%
22%
30%
33%
36
flagItaly
18%
22%
27%
31%
22
flagAustria
27%
36%
5%
30%
111

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