Arnie wants "more juice" when the straw pulls out of his apple juice and he sucks only air. mom pretends to fill his sippy cup by unscrewing the lid and acting as if she is adding more juice. in reality, all mom does is push the straw back down to the bottom of arnie's cup. he acts as he sucks on the straw, pulling the juice into his mouth. mom is wise not to tell arnie that he has plenty of juice, because he is preoperationally:

Disease:

A disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury.

Symptom:

a physical or mental feature which is regarded as indicating a condition of disease, particularly such a feature that is apparent to the patient.

Pathogens:

a bacterium, virus, or other microorganism that can cause disease

Vector:

In medicine, a carrier of disease or of medication. For example, in malaria a mosquito is the vector that carries and transfers the infectious agent. In molecular biology, a vector may be a virus or a plasmid that carries a piece of foreign DNA to a host cell.

Immunity:

the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.

Immunization:

the action of making a person or animal immune to infection, typically by inoculation.

Drug:

a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body.

Vaccination:

Treatment with a vaccine to produce immunity against a disease; inoculation.

Hope it's helpful

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