1. What caused the bald eagle to become a persecuted species? Settlers believed the bald eagle carried and spread diseases to other bird species they used for food.
Settlers believed that eagles competed with them for fish and livestock.
Settlers believed the bald eagle attacked humans, causing harm.
Settlers believed the bald eagle carried and spread diseases to humans.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.