1) what's a planaria? It was mentioned in a question. 2) also, lacteals absorb: A) carb's B) proteins C) fatty acids D) salts E)water answer is C. I put A...wasnt sure why. 3) which selection most likely leads to speciation? A) directional selection B) disruptive selection C) sexual selection D) stabilizing selection answer is B....I thought it was B, what is "disruptive selection"? 4) when empty, the mass of a beaker is 115g. when filled w/300mL of an unknown liquid, the combined mass is 427g. what volume (in mL) would 1kg of the liquid occupy? A) (300)(1000)/(427-115) B) (300)(1000)(427-115) C) 300/427 D) 300/(427-115) answer is A....dont why youd multiply by 1000 first... 5) which of the following is not a good conductor of electricity? A) Fe (s) B) NaCl (aq) C) NaCl (l) D) NaCl (s) E) Cu (s) Answer is D. I dont know why 6) Which of the following compounds is not capable of hydrogen bonding? A) C4H11N B) C4H9NO C) C4H7F3 D) C4H8O2 E) C4H10O answer is C. I remembered that FON can hydrogen bond, so why can't C? 7) Which of the following cmps may be classified as a protic solvent? A) diethyl ether B) n-hexane C) acetone D) ethanol E) nitrobenzene answer is D. is this just knowing which things are protic and which aren't....i can't remember for my life.