
NC Grade 8 Science EOG Review (ERMS)
Flashcard
•
Chemistry, Biology, Other Sciences
•
8th - 9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a food web?
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 the primary source of energy for most ecosystems?
Back
The primary source of energy for most ecosystems is the sun, which provides energy for photosynthesis in plants.
3.
FLASHCARD QUESTION
Front
Define producers in an ecosystem.
Back
Producers are organisms, typically plants and algae, that can make their own food through photosynthesis, forming the base of the food web.
4.
FLASHCARD QUESTION
Front
What role do consumers play in a food web?
Back
Consumers are organisms that eat other organisms (producers or other consumers) to obtain energy. They can be herbivores, carnivores, or omnivores.
5.
FLASHCARD QUESTION
Front
What is the significance of decomposers in an ecosystem?
Back
Decomposers break down dead organic matter, recycling nutrients back into the soil and making them available for producers.
6.
FLASHCARD QUESTION
Front
Explain the concept of trophic levels.
Back
Trophic levels represent the different stages in a food chain or food web, categorized as producers, primary consumers, secondary consumers, and tertiary consumers.
7.
FLASHCARD QUESTION
Front
What is an energy pyramid?
Back
An energy pyramid is a graphical representation showing the flow of energy at each trophic level in an ecosystem, illustrating that energy decreases as it moves up the pyramid.
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