On average, African American families earn what percentage of the amount that white families earn?
a. 97 percent
b. 57 percent
c. 77 percent
d. 27 percent
Question 2
Following the abolition of slavery, this country enacted so-called Jim Crow laws, which
a. guaranteed equal social standing for former slaves.
b. established quotas for jobs and college admissions.
c. segregated trains, restaurants, hotels, and other public places.
d. forced the relocation of thousands of people to government reservations.
Skin of an African (left) and Asian (right) elephant.
Although average brain size increases gradually though time in H. erectus, individuals with small br
Primary Groups: Families
Percentage of Full Tryptophan Expression for trpR+ and trpR- Strains