Which food service entrepreneur is accredited with discovering an effective way of preserving foods? a. louis pasteur b. nicolas appert c. ray kroc d. cesar ritz

Nina has the flu and a high fever. her immune system is exhibiting the line of defense. this defense is part of immunity.

When lifting heavy loads off the ground, the majority of the weight should be lifted by which of the following? a. arms b. legs c. back d. stomach

Which statement supports the principle ideas of jean piaget's philosophy? adults should not interact with teachers. children are best educated through standardized training. adults do not think better than children, but they think differently. children should not form hypotheses until they are certain their findings will be correct.