Theories explain phenomena, whilst laws are generalizations which characterize them.
Answer:
antibiotics
Explanation:
pesticides have to do with nature and killing bugs, weeds, etc. Irrigation has to do with watering plants and people. Trucks are vehicles that transport. Antiobiotics help kill bad bacteria in your body when your sick, so that's health related.
The answer is bacterial cell
Lithium, some antibiotics, ingesting large amount of penicillin <span />
