It's just the way that people are born. Everyone is born differently. Also if you have small irides you probably hate exercise and love to sleep all day.
Yes, depending on genetics
Both have irises and can focus.
Most irises have rhizomes but some have bulbs.
I searched google books to find that in the last 10 years a "cooperative eye hypothesis" has become popular: humans are the only primate species that have white sclerae because it created a uniquely human cooperative evolutionary advantage. However horses, penguins,some chimps,and many other animals also have white sclerae.
Some irises are very short, less than six inches tall. Others are about three feet in height.
The main element in steel is usually iron. It also contains small amounts of other substances, to improve its properties. Often it contains some carbon (not a metal), and sometimes smaller amounts of other metals.
True red is the holy grail for irises. Hybridizers have been working for many years to get a true red. Some are crossbreeding iris with other plants to get the red color. Some are just crossing wine or orange irises to achieve true red.www.nytimes.com/2006/06/27/science/27iris.html?_r=0
Their eyes are located on the top and the to side of their heads. How the eyes look depends on the species. Some have natural looking irises, some have brighter colored irises.
Most animals have different eyes.
Both have irises and can focus.
Most irises have rhizomes but some have bulbs.
Some irises are moved in spring and others in fall.
Some irises love water above their crown. This includes Iris fulva (red flag or copper iris), I. laevigata (rabbit-ear iris), I. prismatica (cube-seed iris), I. pseudacorus (yellow flag), I. versicolor (blue flag), I. virginica (southern blue flag), and the Louisiana irises. Other iris just like wet soil such as Iris ensata, the Siberian irises, I. missouriensis, and I. setosa.
Yes, even though having black irises is extremely rare. Some people mistake very dark brown eyes for being black eyes (irises). This dark brown color comes from a condition called aniridia, where the color of the iris is very close to the color of the pupil.
No, Irises come in almost every color of the rainbow, a true red and a green would be two colors that an Iris would not come in, although some maroons have been cultivated.
I searched google books to find that in the last 10 years a "cooperative eye hypothesis" has become popular: humans are the only primate species that have white sclerae because it created a uniquely human cooperative evolutionary advantage. However horses, penguins,some chimps,and many other animals also have white sclerae.
Usually, if a cats pupils fill it's irises, it is scared. If their eyes are in slits, some people could say they're scared, but usually they're alert if they're slits. And, mostly when cats are happy, or relaxed, their pupils are fat slits, but not so they fill up their irises.
Our sun is about average compared to other stars. Some are much smaller (white dwarfs) and others are much larger.