The cell theory is one of the unifying themes of biology. which of the following statements would be part of the cell theory?

a) the basic unit of life is the cell
b) cells come from preexisting cells
c) all living organisms are composed of cells
d) all of the above

What came first egg or chicken? and is tomato a vegetable or a fruit?

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

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.