Species - One of the most basic units of biological classification, ranking just below the genus and comprising individuals or populations capable of interbreeding.⏎
Trachea - The main trunk of the network of tubes that carries air to and from the lungs, sometimes referred to as the “windpipe.”⏎
Yeast - A broad group of microscopic fungi that includes harmless forms of yeast used in baking and alcoholic fermentation as well as pathogenic species that can cause disease. ⏎
White Blood Cell - A special type of cell that works as part of the immune system to defend the body against disease and infection.⏎