Which of the following are true of phospholipids. Are most hydrophobic substances known
Act as hormones
Have hydrophilic heads
Are ringed lipids

The skin includes multiples layers. which of the following is not one of the layers of the skin?

How are medical providers most likely to be grouped for searches? check all that apply. -coverage -specialty -age -competence -need

What should you not do when doing abdominal workouts? a. keep your chin off your chest b. keep your head aligned with the spine c. put pressure on your neck d. all of the above