Which of the following statements are true about frederick douglass? he was an advisor to president lincoln during the civil war. he advocated segregating all the public schools. he was responsible for writing a famous autobiography. he was a leader in trying to defeat the abolitionist movement. he taught himself to read after learning the alphabet.

name two ways organisms join a population and two ways organisms leave a population. two ways organisms join a population are birth rate and immigration. two ways they leave are death rate and emigration.

explanation:

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories