ANTIBIOTIC SUSCEPTIBILITY TESTING. Bacteria demonstrate two kinds of resistance to antibiotics, namely intrinsic resistance and acquired resistance. Intrinsic resistance means that the species was resistant to an antibiotic even before its introduction.
Radioactive contamination and radiation exposure could occur if radioactive materials are released into the environment as the result of an accident, an event in nature, or an act of terrorism. Such a release could expose people and contaminate their surroundings and personal property.
4) The process in which the nuclei of unstable atoms can become more stable by emitting particles and/or electromagnetic radiation is called ________________. 5) High-energy electromagnetic radiation released by a radioactive nucleus are called __________.) A positively charged particle made up of two protons and two neutrons and released by a radioactive nucleus is the __________. 2) An electron released by a radioactive nucleus that causes a neutron to change into a proton is called a __________.