B4.2 Ecological niches - student friendly summary
Blue text shows extra clarification or guidance. Guiding questions SL & HL (4 hours) B4.2.1 - Ecological niche is the role of a species in an ecosystem. It includes the biotic and abiotic interactions that influence growth, survival and reproduction, including how a species obtains food. B4.2.2 - Different tolerance of organisms to oxygen in their environment gives terms, obligate anaerobes, facultative anaerobes and...