The best sign as to whether an infant has developed an attachment ...

[dmcintosh]

The best sign as to whether an infant has developed an attachment for a specific adult would be if the infant
 
  a. becomes apathetic when not near that specific adult.
  b. attempts to communicate telepathically with that adult.
  c. protests when he is separated from his primary caregiver.
  d. smiles often when strangers are nearby.

Question 2

Through active niche-building, similarities within pairs of fraternal twins ____ as they mature from childhood to adulthood.
 
  a. weaken
  b. remain stable
  c. strengthen
  d. become difficult to assess

[emily12345]

Answer to Question 1

C

Answer to Question 2

A

[dmcintosh]

Gracias!

[patma1981]

TYSM