HELP!! this isnt biology it's earth science.

Based on the physical properties of seawater, write the letters of the water samples below in order of increasing depth, from shallowest to deepest. Explain the reasoning used for the sample order chosen.

Explain why phospholipid molecules form a bilayer. (3 marks)

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

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.