What is a food web?
Food Webs and Ecological Pyramids

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Biology
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A food web is a complex network of feeding relationships among various organisms in an ecosystem, showing how energy and nutrients flow through different trophic levels.
2.
FLASHCARD QUESTION
Front
What is a trophic level?
Back
A trophic level is a position in a food chain or food web, defined by how organisms obtain their energy, such as producers, primary consumers, secondary consumers, and tertiary consumers.
3.
FLASHCARD QUESTION
Front
What is the role of producers in a food web?
Back
Producers, or autotrophs, are organisms that create their own food through photosynthesis or chemosynthesis, forming the base of the food web.
4.
FLASHCARD QUESTION
Front
What is the energy transfer efficiency between trophic levels?
Back
Energy transfer efficiency between trophic levels is typically around 10%, meaning only about 10% of the energy from one level is passed to the next.
5.
FLASHCARD QUESTION
Front
What is a primary consumer?
Back
A primary consumer is an organism that eats producers; they are usually herbivores that obtain energy by consuming plants.
6.
FLASHCARD QUESTION
Front
What is a secondary consumer?
Back
A secondary consumer is an organism that eats primary consumers; they can be carnivores or omnivores.
7.
FLASHCARD QUESTION
Front
What is a tertiary consumer?
Back
A tertiary consumer is an organism that eats secondary consumers; they are often top predators in a food web.
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