Sampling populations
Sampling populations
A habitat is the place where an organism lives, while a population is all the organisms of one species living in a defined area at the same time. Ecologists usually sample part of a habitat because a complete count would be slow, damaging and often impossible.
Step-by-step lessons on OCR GCSE Biology 6.1 Monitoring and maintaining the environment, covering 6.1.1 Field investigation of distribution and abundance, 6.1.2 Human interactions and biodiversity, 6.1.3 Maintaining biodiversity, and 6.1.4 Environmental change and distribution of organisms. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.