How does a scientist critique another scientist’s conclusion? a. by ignoring the first scientists date b. by criticizing the scientist’s personal beliefs c. by performing more experiments d. by reading secondary sources

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.