Answer: Directional Selection
Explanation: Directional selection also called positive selection, is a form of natural selection in which natural forces of nature favours an extreme phenotype over other phenotype I.e when environmental pressure favours one phenotype more than another invariably forcing a population to evolve towards a trait.
Divisibility is an important characteristic of money because it is easy to divide itself up.
The "giant" that Barack Obama refers to in his Nobel Peace Prize acceptance speech who received the prize before him was Nelson Mandela. There were other "giants" mentioned but of the answers provided that is who he was referring to.
An enslaved person could be granted freedom by the state government.
Explanation
Enslaved person could not testify against a white. Slave codes were a series of codes which codified the behavior of the slave owners and the slaves. Slaves codes were designed by the whites in order to promote the slave labor.
During the time of emancipation proclamation, many slaves were set to be free. Freedman is the person who was set to be free from the clutches of slavery. Enslaved person could not purchase or own any property as he is considered to be equal to a property who can be bought and sold. slave codes were once legitimized in United states of America. After the civil war and the African american enfranchisement, slavery reduced in america.