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The iris ( pl.: irides or irises) is a thin, annular structure in the eye in most mammals and birds, responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Eye color is defined by the iris. Etymology[edit]
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Iris is a flowering plant genus of 310 accepted species [1] with showy flowers. As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera.
Feb 20, 2022 · The iris is the colored part of your eye. Muscles in your iris control your pupil — the small black opening that lets light into your eye. The color of your iris is like your fingerprint. It’s unique to you, and nobody else in the world has the exact same colored eye.
2025 (expected) Other details. Cost. €6 billion. Website. defence-industry-space .ec .europa .eu /eu-space-policy /iris2 _en (EU Defence Industry and Space) IRIS² ( Infrastructure for Resilience, Interconnectivity and Security by Satellite) is a planned multi-orbit satellite internet constellation to be deployed by the European Union by 2027.
Apr 23, 2022 · The iris is the colored part of the eye that controls the amount of light that enters into the eye. It is the most visible part of the eye. The iris lies in front of the crystalline lens and separates the anterior chamber form the posterior chamber. The iris in part of the uveal tract which includes the ciliary body that also lies behind the iris.
Dec 28, 2016 · SINGAPORE — The Immigration & Checkpoints Authority (ICA) will begin collecting iris scans from Singaporeans and Permanent Residents (PR) from Jan 1 next year, the Ministry of Home Affairs (MHA)...
Mar 28, 2016 · Iris - American Academy of Ophthalmology. Eye Health A-Z. Iris. Leer en Español: Iris. Published Mar. 28, 2016. The colored part of your eye. It controls the size of your pupil to let light into your eye. Read an overview of general eye anatomy to learn how the parts of the eye work together. The colored part of your eye.
Jun 5, 2024 · iris, (genus Iris ), genus of about 300 species of flowering plants, including some of the world’s most popular and varied garden flowers. The diversity of the genus is centerd in the north temperate zone, though some of its most handsome species are native to the Mediterranean and central Asian areas.
Feb 23, 2024 · It is a genus of up to 300 species of flowering plants. Iris are perennial plants, growing from creeping rhizomes or from bulbs. They have long, erect flowering stems which may be simple or branched, solid or hollow, flattened or have a circular cross-section. Iris with flattened leaves, forming a fan, are the most common in gardens.
