| A | B |
| skepticism | the questioning way a scientist looks at data. |
| symbiosis | mutualism or commensalism |
| hypothesis | a testable idea |
| experiment | a test carried out under controlled conditions to test a hypothesis |
| control group | serves as a standard for comparison |
| theory | an explanation for many experimental results |
| homeostasis | maintaining ones inside environment differently from the external environment |
| metabolism | the sum of all chemical reactions in the body |
| cohesion | a molecule's ability to stick to itself |
| adhesion | a molecule's ability to stick to other substances |
| carbohydrate | sugars, starches, etc |
| lipid | fatty acids, fats, waxes, phospholipids, cholesterol; |
| protein | chain of amino acids |
| nucleotide | building block of nucleic acids. |
| activation energy | lowered by an enzyme |
| substrate | acted on by an enzyme. |
| community | group of species that share a habitat |
| ecosystem | community plus environment |
| biodiversity | many species |
| succession | order of regrowth after a catastrophe |
| climate | average temp and precipitation |
| biome | large region with a particular climate |
| producer | makes energy |
| consumer | eats others |
| decomposer | fungi and bacteria |
| trophic level | step in a food pyramid |
| energy pyramid | shows who eats whom and how much energy is lost in the process |
| carbon cycle | recycles Carbon |
| respiration | produces CO2 |
| nitrogen cycle | recycles Nitrogen for proteins. |
| legume | fixes nitrogen from the air |
| carrying capacity | the top of the growth curve--maximum life that the ecosystem can support |
| predator | hunter |
| prey | hunted |
| commensalism | win/no change relationship |
| mututalism | win/win relationship |
| parasitism | win/lose relationship |
| observation | using your senses to make inferences |