Match the following terms and definitions. 1. the smallest unit of an element atomic mass 2. the path surrounding the nucleus of an atom in which electrons are normally located electron 3. the number of protons in the nucleus of the atom compound 4. a pure substance where atoms of two or more elements are chemically bonded to one another neutron 5. the positively charged center of an atom atom 6. exists in orbit around the nucleus of an atom and carries a negative charge molecule 7. the smallest unit of a pure substance that consists of two or more atoms held together by a chemical bond shell 8. the mass of an element diatomic 9. a subatomic particle that carries no charge atomic number 10. containing two atoms nucleus 11. a subatomic particle with a positive charge proton

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.