1. Our adaptive flexibility in responding to different environments contributes to our fitness, which refer to
A) random errors in the replication of genes
B) the extent to which variation among individuals can be attributted to their differing genes.
C)our ability to survive and reproduce
D) the interaction of our with our environment

2. To estimate trait heritability, researchers are most likely to make use of
a) the pruning process
b) gender schemas
c) gender typing
d) twin studies

3. Compared with females, males use conversation to
A) explore relationships
b) communicate solutions
C obtain feedback on thie views
d) offer support