1 Aseptic meningitis is a term referring to the broad category of meningitis that is not caused by bacteria. 2  Approximately 50% of aseptic meningitis is due to viral infections. 3  Other less common causes include. 4  drug reactions or allergies,  inflammatory diseases like lupus.
The cycle will probably take you roughly 6-8 weeks, depending on the amount of dead stuff in the dry rock and the amount of dead life on the live rock that didn't survive shipping and handling by the time it gets back into saltwater. If the rock is really clean, it might be less than six weeks.
Best Answer: The earliest record we have of a creature that looks like a modern human is only about 100,000 years old, which is just an eye blink in the history of life on Earth. Although life has been on this planet for around 3.8 billion years, humans have only been here for a tiny fraction of that time.