Effector cells
are formed in the red bone marrow.
all of these.
are involved in bringing about the immune response of killing pathogens and infected host cells.
are either B plasma cells or Tc cells.
are lymphocytes.

What claim did thorne make? what evidence supported his claim?

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h, o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.