Which of the following is associated with the fastest neural impulses

A)  unmyelinated dendrites 
B)  myelinated axons 
C)  shorter axons 
D)  multiple dendrites

In their research article on video games and social behavior,Gentile et al. (2009) reported a study in which Singaporean children's exposure to prosocial video games was positively correlated with an index of their tendency to display prosocial behavior.The researchers concluded that the results were consistent with the notion that

A) prosocial behavior does not lead to increases in prosocial video game playing
B) experience playing prosocial video games leads to increases in prosocial behavior
C) a correlation exists
D) there is no relation between prosocial behavior and experience playing prosocial video games

Common chimpanzees who have learned to use sign language or visual symbols that represent words

A) frequently describe things with the symbols.
B) use their symbols almost exclusively to make requests.
C) often link symbols together to form new sentences.
D) are able to understand the symbols, even when arranged in an unfamiliar order.