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Eyes are organs of the visual system. They provide organisms with vision, the ability to receive and process visual detail, as well as enabling several photo response functions that are independent of vision. Eyes detect light and convert it into electro-chemical impulses in neurons. In higher organisms, the eye is a complex optical system which collects light from the surrounding environment, regulates its intensity through a diaphragm, focuses it through an adjustable assembly of lenses to form an image, converts this image into a set of electrical signals, and transmits these signals to the brain through complex neural pathways that connect the eye via the optic nerve to the visual cortex and other areas of the brain. Eyes with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in molluscs, chordates and arthropods. The simplest "eyes", such as those in microorganisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. From more complex eyes, retinal photosensitive ganglion cells send signals along the retinohypothalamic tract to the suprachiasmatic nuclei to effect circadian adjustment and to the pretectal area to control the pupillary light reflex.
lovely animals - blue-eyed kitty
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lovely animals

Added 3 days ago by Basiunia

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Ewa Farna - known Polish-Czech singer
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Ewa Farna

Added 5 days ago by #Zakreconax3

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cat, kitty - beautiful kitty, with cute eyes
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cat, kitty

Added 4 weeks ago by #Zakreconax3

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Makłowicz - a well-known presenter and cook
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Makłowicz

Added month ago by #Zakreconax3

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Majoox10 - The beginning of the year of my crumb
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Majoox10

Added month ago by majaxd

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Kitty - Eyes when he can not see his toy :)
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Kitty

Added month ago by Aneta

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cat in luxuries - cats like luxuries, such as bed and satin
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cat in luxuries

Added 2 months ago by Mila

17

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 months ago by sky limit

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Anime Girl - Wallpaper Anime Girl
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Anime Girl

Added 2 months ago by sky limit

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Deborah & Andrea - A wonderful day on the lake
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Deborah & Andrea

Added 2 months ago by Deb

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Colors of life - The fantastic colors of life
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Colors of life

Added 2 months ago by Zole

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 months ago by Sky Girl

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 months ago by Sky Girl

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Anime crying girl - The first Japanese animated film was the five-minute work of Oten Shimokawa from 1917 entitled Imoka
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Anime crying girl

Added 2 months ago by Jeżyna

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Maite Perroni - Perroni was connected with the guitarist and at the same time the RBD manager. Their relationship en
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Maite Perroni

Added 2 months ago by Jeżyna

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Miley Cyrus - Cyrus launched her film career as a voice actress in the animated film Bolt (2008), and later starre
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Miley Cyrus

Added 2 months ago by Jeżyna

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Pretty girl - Very pretty girl
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Pretty girl

Added 2 months ago by Julia

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Britney Spears - An American pop and dance singer, dancer and actress, active in the entertainment industry since 199
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Britney Spears

Added 2 months ago by Jeżyna

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Eyes for Ethiopia - "Eyes for Ethiopia" is the name of the initiative initiated by Stanisław Kotlarczyk and h
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Eyes for Ethiopia

Added 3 months ago by Matyszczk

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Happy Sloth - They are classified in the order Pilosa along with the anteaters. Extinct sloth species include many
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Happy Sloth

Added 3 months ago by Jeżyna

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Wendy Fairy Tail - Wendy Fairy Tail, Wendy Marvell, Fairy Tail.
She dresses in folk-style costumes and sandals (option
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Wendy Fairy Tail

Added 3 months ago by Jeżyna

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child's smile - the child's smile is priceless
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child's smile

Added 3 months ago by Basiunia

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mamaidziecko - beloved mother and Benek
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mamaidziecko

Added 3 months ago by Benek

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Anime Girl Cartoon - Anime Girl Hat Shiny Random
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Anime Girl Cartoon

Added 3 months ago by pylony

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Kitty - colorful jigsaw puzzle.  The best puzzle zone wit animals.
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Kitty

Added 3 months ago by andi

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Pony-Music - It's a pony who loves Music
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Pony-Music

Added 4 months ago by MYLITTLEPONY

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Cat at home - There are jigsaw puzzles depicting a cat staring at the lens
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Cat at home

Added 4 months ago by Ania

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 months ago by Evil Angel

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Fairy Tail - Lucy Heartfilia and Natsu Dragneel Love
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Fairy Tail

Added 4 months ago by Julia

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Fairy Tail - Lucy Heartfilia and Natsu Dragneel Love
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Fairy Tail

Added 4 months ago by Julia

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 months ago by Evil Angel

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 months ago by Evil Angel

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 months ago by Evil Angel

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Anime Girls - Photo Girls Wallpaper
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Anime Girls

Added year ago by Red Eyes

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lovely animals - I cuddle and I'm cuddled
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lovely animals

Added year ago by Basiunia

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added year ago by Red Eyes

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added year ago by Red Eyes

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Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added year ago by Red Eyes

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