What are the two phases of speciation?

change of existing species

creation of new species from a single mutation to an individual

splitting of existing species into two or more different species

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.

According to this food web which of the following would be considered primary consumers

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because