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Trophics
Notes on trophics in ecology including marine biology.
| Question | Answer |
|---|---|
| What is a trophic pyramid? | A graph representing trophic levels in an ecosystem. |
| Why do the levels of energy decrease as the levels of the trophic pyramid go up? | Energy is lost as heat in the atmosphere, water, and space. |
| What is caused do the the lowering energy up a trophic pyramid? | Fewer organisms make up levels. |
| What is a detritus? | Dead solid organic matter that many organisms including marine organisms will feed on. |
| Why are decomposers important? | They transfer dead organic material back into the food web to used again. |
| When decomposers break down dead organic matter, what simpler forms is it turned into? | Carbon dioxide, water, and essential nutrients. |
| What is nutrient regeneration? | The process of nutrients and material being transferred back into the food web by decomposers to be used by primary producers again. |
| What is primary production? | The production of carbohydrates by autotrophs. |
| What is biomass? | The sum of renewable organic matter produced by the organisms at each trophic level. |
| What is gross primary production? | The general sum of organic energy created by primary producers. |
| What is net primary production? | The remaining amount of energy left from gross primary production after accounting for the energy consumed for respiration in producers. |
| What is standing stock? | The sum of phytoplankton present in the water at a certain time. |
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