Which substance produced by the immune system is involved in both active immunity and passive immunity? antibiotics, antibody, vaccine, or mucus

On a floor there are several 1-4 mm elongated drops leading away from a body lying in a pool of blood. the the forward wall there is a sigzag pattern and on the walls to the right side there is a linear patter

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

The basic types of tissue in the human body are