An ecological investigation of a peat bog ecosystem was conducted to determine the factors influencing the distribution of the insectivorous round-leaved sundew (Drosera rotundifolia).
Which row in the table below correctly classifies these ecological parameters and identifies the biological level of organization represented by all the living organisms of all species inhabiting this peat bog?
| Abiotic factor | Biotic factor | Level of organization | |
|---|---|---|---|
| A | Peat water pH | Density of Sphagnum moss | Community |
| B | Concentration of humic acid | Soil ammonium concentration | Population |
| C | Interspecific competition | Abundance of insect prey | Community |
| D | Water table depth | Rate of cellular respiration | Ecosystem |
Row A
Row B
Row C
Row D
Practise OCR GCSE Biology Ecosystems with exam-style questions for Foundation and Higher tier. 100 questions, matched to the OCR GCSE Biology (J247) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.