Food Chains & Trophic Levels
Food chains represent the feeding relationships within a community, starting with a producer.
What is always found at the start of a food chain?
What is Food Chains & Trophic Levels?
"Food chains are sequences showing how each living thing gets food, and how nutrients and energy are passed from creature to creature."
What is meant by a community in ecology?
In a stable community, the populations of all species remain relatively constant. What is this called?
Which type of pollution can lead to eutrophication in lakes and rivers?
Which term describes the non-living conditions in a habitat, such as temperature and light intensity?
Biological Food Chains
Producers (Level 1): Green plants or algae that make their own food by photosynthesis.
Primary Consumers (Level 2): Herbivores that eat producers.
Secondary Consumers (Level 3): Carnivores that eat primary consumers.
Tertiary Consumers (Level 4): Apex predators at the top of the food chain.
Arrows in a food chain represent the flow of energy from one organism to another.
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