When presynaptic neurons are active and postsynaptic neurons fire at the same time:

Some people believe that St. John's Wort may be helpful for

cases of mild depression, but the small amount of research supporting this claim has not been achieved in all subsequent research. Which critical thinking concept should have us wondering whether this herbal remedy is really effective or if the placebo effect is a better explanation for these findings? A) Correlation versus causation B) Replicability C) Extraordinary claims D) Falsifiability

Research shows that the death of a parent during childhood can have long-lasting

effects on a. physical functioning b. emotional well-being c. career choice d. both a and b e. both b and c