Feeding relationships lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. Includes powerpoint timers, slide animations, embedded video’s and mini review. NB: If you are unable to play embedded videos please view slide notes for link.
AQA spec link: 4.7.2.1
Relevant chapter: B17 organising an ecosystem. AQA Biology third edition textbook-Page 276-277
Students are required to know the following;
Students should understand that photosynthetic organisms are the producers of biomass = for life on Earth. Feeding relationships within a community can be represented by food chains. All food chains begin with a producer which synthesises molecules. This is usually a green plant or alga which makes glucose by photosynthesis.
Producers are eaten by primary consumers, which in turn may be eaten by secondary consumers and then tertiary consumers.
Consumers that kill and eat other animals are predators, and those eaten are prey. In a stable community the numbers of predators and prey rise and fall in cycles.
WS 1.2 Interpret graphs used to model predator-prey cycles.
Students should be able to interpret graphs used to model these cycles.
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