Children who begin learning a second language by about the age of _____ usually become just as fluent in the second language as in the first

Because most traits are polygenic, they are

the result of dominant genes. constantly changing. produced by many genes. the result of recessive genes.

Damage to the hippocampus would most likely result in which disorder?

A) anterograde amnesia B) retroactive interference C) retrograde amnesia D) proactive interference