Why do the phospholipids surrounding the cell form a bilayer?

In a cladogram' when does a group of organisms branch off

The activity of the modern sample is 1.10 bq . how long does that measurement take?

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.