| A | B |
| producer or autotroph | an organism that makes its own food |
| consumer or heterotroph | an organism that cannot make its own food |
| herbivore | a consumer that eats only plants |
| carnivore | a consumer that eats only animals |
| omnivore | a consumer that eats plants and animals |
| qualitative | observations based on qualities that can be described using the 5 senses |
| quantitative | observations based on quantities, or numbers, which can be measured |
| decomposer | organisms that break down dead or decaying organisms |
| manipulated | variables that are tested, different or changed |
| control | variables that stay the same |
| sun | source of energy for living things |
| hypothesis | a prediction that can be tested; If, then format |
| primary consumer | the consumer that eats first on an energy diagram |
| secondary consumer | the consumer that eats second on an energy diagram |
| the first organism on an energy diagram | producer |