| A | B |
| Minerals | inorganic nutrients (sodium, calcium) |
| Sanitation promotes health through | prevention of human contact with hazardous wastes |
| Vaccinations are prepared from | weakened or killed pathogens to stimulate immunity |
| Pathogens | germs (bacteria, viruses) |
| Muscular | moves the body |
| nervous system transmits | signals (brain, spinal cord, sensory organs) |
| endocrine | glands that secrete hormones directly into the circulatory system |
| skeletal | system that provides support |
| Hypothermia | lowered body temperature |
| Calories | measurement of energy in food |
| Vitamins | organic nutrients (B12, K) |
| Homeostasis | maintain internal stability in organisms |
| Symbiotic relationships | 2 organisms that work together |
| product | the result of multiplying numbers |
| quotient | the result of dividing numbers |
| sum | the result of adding numbers |
| difference | the result of subtracting numbers |
| mutualistic relationship (multualism) | 2 organisms of different species "work together," each benefiting from the relationship |
| parasitism (fleas and dogs) | 1 organism harms another of a different species |
| Commensalism | 1 oragnism benefits; the other is not harmed or benefitted |