Diffusion requires energy from ATP.

Frederick Douglass was never married.

In Frederick Douglass’s opinion, a holiday like New Year’s Day was good for slaves and encouraged the “spirit of insurrection” among slaves.

A person who is eating a hamburger is mainly eating ground-up beef muscle. What levels of organization are represented in this ground-up muscle?

Frederick Douglass said he was never asked how he felt in a free state. So, he never discussed it.

Mr. Severe was regarded as a kind man.

It is a myth that slave masters used people to spy on slaves.

Frederick Douglass was born in Tuckahoe, near Hillsborough, and about twelve miles from Easton, in Talbot county, Maryland.

In Baltimore, initially, Douglass worked for Mr. Gardner with Master Hugh’s permission.  

When a reporter is forbidden to print or broadcast a source’s indentity or information gleaned from that source, the information is said to be