IB Biology Topic B4.2 Ecological Niches (SL/HL) covers syllabus content as part of Topic B4: Ecosystems under Theme B: Form and Function. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
B4.2 Ecological niches is part of Topic B4: Ecosystems under Theme B: Form and Function.
What this topic covers
B4.2.1 Ecological niche as the role of a species in an ecosystem
B4.2.2 Organisms that are obligate anaerobes, facultative anaerobes and obligate aerobes
B4.2.3 Photosynthesis as the mode of nutrition
B4.2.4 Holozoic nutrition in animals
B4.2.5 Mixotrophic nutrition in some protists
B4.2.6 Saprotrophic nutrition in some fungi and bacteria
B4.2.7 Diversity of nutrition in archaea
B4.2.8 Dentition and the diet of omnivorous and herbivorous members of the family Hominidae
B4.2.9 Adaptations of herbivores for feeding on plants and of plants for resisting herbivory
B4.2.10 Adaptations of predators
B4.2.11 Adaptations of plant form for harvesting light
B4.2.12 Fundamental and realized niches
B4.2.13 Competitive exclusion and the uniqueness of ecological niches