| Date | November 2010 | Marks available | 2 | Reference code | 10N.3.SL.TZ0.21 |
| Level | Standard level | Paper | Paper 3 | Time zone | TZ0 |
| Command term | Distinguish | Question number | 21 | Adapted from | N/A |
Question
Distinguish between fundamental niches and realized niches.
Markscheme
fundamental niche is the potential mode of existence whereas realized niche is the actual mode of existence;
adaption/competition/predation/powers of distribution are important in determining the realized niche;
Examiners report
There were some very good answers to this question. Most candidates were able to distinguish between realized and fundamental niches.
Syllabus sections
Option C: Ecology and conservation » Option C: Ecology and conservation (Core topics) » C.1 Species and communities
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