Answer the following statements true (T) or false (F)

1. According to Desmond Morris, in Greece, we can say “no” by raising and lowering our eyebrows once.
2. Studies show that we expect women to express “feminine” emotions such as happiness, shame, fear, embarrassment, and sadness more often than men do.
3. All primate species have signaling systems that include the use of facial expressions.
4. Observed among most primates, the “play face” is a relaxed open-mouth expression that resembles the face of laughter in humans.

1. true
2. true
3. true
4. true