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| 5949047571 | Sequence from largest to smallest | Molecule, atom, neutron, electron | 0 | |
| 5949047572 | Second law of thermodynamics | The energy in the universe is constant | 1 | |
| 5949212083 | Producer | Responsible for turning inorganic chemicals into organic chemicals | 2 | |
| 5949212084 | Deconposer | Capable of converting matter from one form to another | 3 | |
| 5949212085 | Needed to have a functional ecosystem | Producer and heterotroph | 4 | |
| 5949212086 | Most productive ecosystem | Swamps and marshes | 5 | |
| 5949212087 | It has been said that land animals can't exist without plants but plants could exist without animals | True. Plants are able to convert sunlight into food energy and animals must get their energy from plants or other organisms that eat plants | 6 | |
| 5949212088 | Logistical growth | Number of individuals increase rapidly, rate of increase slows as carrying capacity is reached, the curve on the graph levels off. | 7 | |
| 5949212089 | Community | Several interacting species living in the same area | 8 | |
| 5949212090 | TFR of 2.1 | The statistical representation of population replacement | 9 |
