Why is cellulose considered to be a complex carbohydrate? it is composed of a complex arrangement of glucose molecules. it is composed of a long straight chain of glucose molecules. it is composed of a complex arrrangement of chitin molecules. it is composed of two carbon molecules joined with a double bond.

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

Give an example of a trait that is controlled by more than one gene.