In patients with emphysema, what is the main stimulus of respiratory regulation?

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

How can an organ, such as the lungs, work for multiple body systems?

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.