1.   The organic matter is extremely old and quite dissimilar to biological material.

2.   In short, fertilization enhanced neither the build-up of biological materials nor the capture of nutrients by it.

3.   Amber is known to shield biological material not only from the destructive effects of moisture but from oxygen and invading bacteria.

4.   And a powdery substance sent to a New York Times reporter turned out tested negative for anthrax and other dangerous biological materials.

5.   At issue for Partners and dozens of other hospitals across the nation are growing collections of biological material collected from patients during surgery and other routine procedures.

6.   Abelson and his colleagues, who call their approach amorphous computing, are experimenting with the idea of mapping circuitry onto biological material.

7.   He said that he was shown biological materials from a laboratory that was underneath Saddam Hussein Hospital, the largest hospital in Baghdad.

8.   It may also indicate, as some scientists believe, that killer space rocks can actually carry the biological material that seeds new life.

9.   Moreover, the science of determining how much biological material is enough is a deliberate and lengthy one.

10.   One way to cut the risk of contamination from anthrax or other biological material arriving in a letter is to sterilize it.