In the dark, an object is more clearly seen when viewed in peripheral vision than when viewed directly, this phenomenon occurs because the rods located in the retina are:<u> more </u><u>sensitive</u><u> in the dark than </u><u>cones</u>.
The retina extends through the posterior portion of the eyeball is the innermost layer and in it are the photoreceptors: cones and rods.
Rods and cones are the two types of photoreceptor cells in vertebrates that capture light energy (photons) and convert it into electrical signals.
- The rods are sensitive to changes in light, since their detection thresholds are low, so they only come into operation when the light intensity is low (scotopic vision or night vision).
- Scotopic vision has relatively low acuity, as the details of an object cannot be discerned or its color appreciated.
- On the contrary, cones have a much higher threshold for light, they are responsible for daytime vision (photopic vision) and their mission is to detect colors and shapes (details).
Therefore, we can conclude that in the dark, an object is more clearly seen when viewed in peripheral vision than when viewed directly, this phenomenon occurs because the rods located in the retina are: more sensitive in the dark.
Learn more here: brainly.com/question/14018797
The horsehoe crab because it was one of the first animals to ever live on earth
Multicellular organisms have specialized cell which perform specific tasks whiles unicellular have their whole body preforming
Used by people is the answer. :-)
In a child with sore throat, otherwise known as pharyngitis, the most common etiologic agent that causes pharyngitis is adenoviruses. Although, with a high grade fever and a red, inflamed throat, a bacterial etiology can be considered and the most common bacterial agent in pharyngitis is <em>Streptococcus pyogenes. </em>There are suppurative and non-suppurative complications following an untreated streptococcal infection. Suppurative complications (which involves pus) includes tonsillar abscess or collection of pus within the tonsils, otitis media or the infection of the middle compartment of the ear canal, sinusitis, etc. The non-suppurative complications are more serious than suppurative complications. There are two non-suppurative complications, (1) acute rheumatic fever which can progress to rheumatic heart disease which affects the valves of the heart and can ultimately lead to heart failure, and (2) acute glomerulonephritis which involves streptococcal antibodies attacking the glomerular basement membrane in the kidneys and this will present as oliguria (decreased urine production), hypertension (from fluid overload), and hematuria (blood in the urine).
