This phylogenic tree shows the changes in bacterial species from the ancestral species to the most current split in the modern classification system. this tree supports the theory that
a) speciation results in biodiversity.
b) natural selection favors the fittest.
c) within a population, variation exists.
d) extinction is the fate of the species that cannot adapt.

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.

Discuss the functions of epithelial connective nerviud and muscular tissues

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?