GCSE Biology - Abiotic & Biotic Factors

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*** WHAT'S COVERED ***
1. Understanding Biotic Factors
* Definition of biotic factors as the living components of an ecosystem that affect other organisms or shape the environment.
* Examples including predation, competition for resources or habitat, the prevalence of disease, and the availability of food.
2. Understanding Abiotic Factors
* Definition of abiotic factors as the non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
* Examples such as light intensity, temperature, carbon dioxide concentration, moisture levels, wind intensity and direction, and soil pH and mineral content.
3. Impacts and Interactions in Ecosystems
* How changes in abiotic factors (e.g., temperature) can influence biological processes like photosynthesis and the behaviour or energy expenditure of organisms.
* Consideration of how organisms are affected by the interplay of various biotic and abiotic factors, including direct and indirect effects.
4. Analysing Factors in a Specific Ecosystem
* Application of concepts to identify relevant biotic and abiotic factors for a particular organism, using a clownfish and its sea anemone habitat as a case study.

*** CHAPTERS ***
0:00 Introduction
0:20 Biotic Factors
1:13 Abiotic Factors
1:50 How Changes in Abiotic Factors Affect Organisms
2:18 Analysing Factors in Ecosystems

*** PLAYLISTS ***






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