Discuss skeletal muscle contraction. EXPLAIN how this process works, the filaments involved, and how these muscles can contract.

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.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

What noticeable trend from this graph might be used to make a conclusion?