To calculate life expectancy you need to know how much the disease severity, risk factor the patient had and the complication that already occurs. In general, 90% of stage IV sarcoidosis patient will survive in 5 years, and 80% will survive for 15 years.
A vacuole takes up the majority of the space in a mature plant cell, providing structure. Kind of like a full water balloon. This is why plants stand up straight.
If water had no density - if its mass per unit volume were zero - it would be massless, and would travel at the speed of light.
The oceans would all go in all directions (leaving sea-dwelling flora and fauna behind - and all the salt).
You wouldn't see rain coming (at least, not directly at you), because the image of the rain would travel no faster than the rain itself.
<span>And water pistols would essentially be laser guns.</span>
