Q: Fact 1: Echinoderms lack a centralized nervous system. Fact 2: Starfish and sea urchins are also echinoderms. Given the two facts above, what lack a centralized nervous system?

Select from:
*Pesticides;
*neurons;
*barnacles;
*alpacas;
*insects;
*fish;
*humans;
*starfish;
A:
starfish