Amajor side affect that stress can cause on the gastrointestinal system is

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

Write an essay of no less than 200 words about how drugs and alcohol can affect the body and make you unable to participate in sports and fitness-related activities. include your own ideas about how to say "no" to your peers if they offer you drugs as a means of "fitting in."

Which list shows the correct order of living units, from smallest to largest? 1: bone, osteocyte, periosteum 2: periosteum, bone, osteocyte 3: bone, periosteum, osteocyte 4: osteocyte, periosteum, bone