Amuscle that draws ribs together
a. internal intercostals
b. pectoralis major

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?