Please help, this is health class, and the images tell you what to do below. No incorrect answers please.

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation

Bacteria can cause different infections, check all that apply. a. sore throat b. measles c. ear infection d. flu e. cavities

Practice or pre-exercise theories of play pose the idea that a. play provides children with an opportunity to practice adult activities. b. play is necessary to reenergize human cognition. c. children have too much energy and play will rid them of that energy. d. children are the link between animals and human beings.