How do you see the stars? If your vision is clouded by darkness?

When you see stars inside the eye, you may be experiencing what's called an entoptic phenomenon. ... They're actually little clumps of vitreous gel floating inside your eye. Sometimes they can be caused by other conditions, including: tears or holes on the retina...

The primary causes of blurred vision are refractive errors — nearsightedness, farsightedness and astigmatism — or presbyopia. ... Cloudy vision usually is a symptom of specific conditions such as cataracts. Blurry vision and cloudy vision both can be symptoms of a serious eye problem, especially if they occur suddenly.

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.