in order for a person to be declared "whole-brain" dead, they must satisfy criteria including a lack of response to stimulation, lack of reflexes, and lack of spontaneous respiration when tested on two occasions, apart.

The answer is "24 hours".

Everybody recognizes what "brain dead" means: a man whose brain never again works is brain dead. The term is utilized so habitually and in such huge numbers of various settings that we ought not be astounded that 66% of individuals mistakenly trust that somebody who is brain dead isn't lawfully dead, and the greater part trust that a sluggish patient is brain dead. Such errors and disarrays make it simple to appreciate why there is still a decent arrangement of discussion about the connection between assurance of death and organ donation.

sumerians were polytheistic, meaning they believed in many different gods. so, the best answer is c.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals