Gulls signal aggression by pointing their beaks at one another ...

[storky111]

Gulls signal aggression by pointing their beaks at one another and submission by
 
  A) head bobbing.
  B) head nodding.
  C) wing flapping.
  D) pointing their beaks away from one another.
  E) none of the above

Question 2

The idea that opposite messages are often signaled by opposite movements and postures is called the principle of
 
  A) opposition.
  B) antithesis.
  C) conspecifics.
  D) parsimony.
  E) anti-expression.

[ciecieme]

Answer to Question 1

Answer: D

Answer to Question 2

Answer: B