Fertilization of an egg without activation is most like
A) placing the key in the ignition of a car but not starting the engine. B) resting during halftime of a basketball game. C) preparing a pie from scratch and baking it in the oven. D) walking to the cafeteria and eating lunch. E) dropping a rock off a cliff and watching it land in the valley below.
In sea urchins, the "fast block" and the longer lasting "slow block" to polyspermy, respectively, are
A) the acrosomal reaction and the formation of egg white. B) the cortical reaction and the formation of yolk protein. C) the jelly coat of the egg and the vitelline membrane. D) membrane depolarization and the cortical reaction. E) inactivation of the sperm acrosome.