TEST BANK FOR BIOLOGY: LIFE ON EARTH WITH PHYSIOLOGY,10/E 10TH EDITION GERALD AUDESIRK, TERESA AUDESIRK, BRUCE E. BYERS

Biology: Life on Earth with Physiology, 10e (Audesirk) Chapter 2 Atoms, Molecules, and Life 2.1 Multiple Choice Questions 1) A substance with specific properties that cannot be broken down or converted into another substance is called a(n) A) element. B) molecule. C) ion. D) compound. E) mixture. Answer: A Diff: 1 Section: 2.1 Skill: Knowledge/Comprehension 2) If you examined the human body, which of the following combinations of elements would be most common? A) C, O, P, S B) C, Na, O, N C) Cl, Ca, C, H D) C, S, Ca, N E) O, N, H, C Answer: E Diff: 2 Section: 2.1 Skill: Knowledge/Comprehension 3) The atomic number of an atom is defined as the A) number of electrons in the outermost energy level. B) total number of energy shells. C) number of neutrons in the atomic nucleus. D) number of protons in the atomic nucleus. E) total number of electrons and neutrons. Answer: D Diff: 2 Section: 2.1 Skill: Knowledge/Comprehension