11.   Saliva or other biological material from a suspect is fed into a channel in the chip.

12.   Scientists are working on creating tools that will repair damaged parts using biological materials that are absorbed naturally into the body.

13.   Simply put, the technology compares the genetic blueprint of a suspect to that of the biological material from a crime scene.

14.   That forms when minerals carried by fluids fill the pores and tiny spaces in the original biological material.

15.   The biological material is written in simple terms, with occasional bouts of dry humor.

16.   The tests can incorporate filters to screen any extraneous biological material and measure the microbe numbers.

17.   This is extrapolated to give the number of microbes, or the total biological material present.

18.   Today its pioneers are finding that almost any biological material can be coaxed from a culture dish.

19.   Unlike American patent law, Brazilian patent law does not allow patents for inventions based on laws of nature or biological material, mathematical theories or works of art.

20.   A powdery white substance in an envelope sent to a New York Times reporter tested negative for anthrax and other dangerous biological materials, the newspaper said Saturday.