In the reaction H2S + NH3 NH4+ + HS–, the two Brönsted-Lowry bases are
A) NH3 and HS-
B) NH3 and NH4+
C) H2S and NH3
D) H2S and HS-

Identify and describe the three ways that mutations affect organisms.

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.