Ecosystem Interactions – Multiple Choice 1.C – Decomposers recycle matter, changing it from dead...
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Transcript of Ecosystem Interactions – Multiple Choice 1.C – Decomposers recycle matter, changing it from dead...
![Page 1: Ecosystem Interactions – Multiple Choice 1.C – Decomposers recycle matter, changing it from dead organisms and waste material to nutrients that are available.](https://reader035.fdocuments.in/reader035/viewer/2022071718/56649eaa5503460f94baf449/html5/thumbnails/1.jpg)
Ecosystem Interactions – Multiple Choice1. C – Decomposers recycle matter, changing it
from dead organisms and waste material to nutrients that are available to producers.
2. A - Commensalism, in which one species benefits and the other is unaffected, is not represented in this situation.
3. D – The highest tropic level is generally the smallest. Since energy is lost as it is transferred from one trophic level to the next higher level.
![Page 2: Ecosystem Interactions – Multiple Choice 1.C – Decomposers recycle matter, changing it from dead organisms and waste material to nutrients that are available.](https://reader035.fdocuments.in/reader035/viewer/2022071718/56649eaa5503460f94baf449/html5/thumbnails/2.jpg)
A. Any food chain through the ecosystem from sun to humans is acceptable.
Example: phytoplankton, mussels, crabs, humans
B. When consuming a seaweed salad, a person is acting a primary consumer. When consuming striped bass the same person is acting as a tertiary or quaternary consumer.
Ecosystem Interactions – Constructed Response
![Page 3: Ecosystem Interactions – Multiple Choice 1.C – Decomposers recycle matter, changing it from dead organisms and waste material to nutrients that are available.](https://reader035.fdocuments.in/reader035/viewer/2022071718/56649eaa5503460f94baf449/html5/thumbnails/3.jpg)
C. Decomposers are missing from the food web. They return nutrients to the water, allowing producers (phytoplankton and seaweed) to grow. Because the entire ecosystem depends on producers, decomposers play a crucial role in the ecosystem.
Ecosystem Interactions – Constructed Response