MCQOPTIONS
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| 1. |
On what is the pyramid of numbers based on? |
| A. | The energy at each trophic level |
| B. | Individuals in a trophic level |
| C. | Biomass content at each trophic level |
| D. | The area at each trophic level |
| Answer» C. Biomass content at each trophic level | |