a person would have to see it with their own eyes... technology has gotten to advanced to be able to prove it with visual evidence unless you experience it yourself
No. Though some people believe in all kinds of 'supernatural' phenomena. There is no irrefutable evidence that any such thing as ghosts exist.
There is no scientific evidence to support the existence of ghosts, so it is impossible to determine if they can sleep or not. Ghosts are a part of folklore and myth, so beliefs about their behavior are subjective and vary depending on cultural beliefs.
2 good and evil
The kinds of evidence that indicates how closely species are related are evidence of DNA and protein structure.
as new evidence and more kinds of organism are discovered
There are in-fact 15 kinds of matter that have been proven to exist.
Very many.
eight
enzymesOther contributors have said "What kinds of proteins are needed for most cellular activities?" is the same question as "Which kinds of proteins are needed for most cellular activities?"good job answers.com
Primary and secondary sources.
Yes, Psychics do exist. There are many different types: Insomniactic Psychics: These psychics see vivid dreams about the future. It's like Deja Vu. You may not remember the dream, but you'll have a feeling of Deja Vu. Spirit Psychics: These psychics can feel and see a ghostly presence. No, there isn't such thing as a haunting type ghost. They mostly have good purposes. They can also talk to them if needed. Only a special few can summon ghosts. That's all I know, because I'm both of these. :D
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