Changes in Ecosystems
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an ecosystem?
Back
An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with their physical environment (soil, water, air) in a specific area.
2.
FLASHCARD QUESTION
Front
What is a producer in an ecosystem?
Back
A producer is an organism that can make its own food through photosynthesis or chemosynthesis, such as plants and algae.
3.
FLASHCARD QUESTION
Front
What is a consumer in an ecosystem?
Back
A consumer is an organism that cannot produce its own food and instead obtains energy by eating other organisms.
4.
FLASHCARD QUESTION
Front
What is a predator?
Back
A predator is an animal that hunts and eats other animals (prey) for food.
5.
FLASHCARD QUESTION
Front
What is prey?
Back
Prey is an animal that is hunted and eaten by predators.
6.
FLASHCARD QUESTION
Front
What role do decomposers play in an ecosystem?
Back
Decomposers break down dead organic matter, returning nutrients to the soil and helping to recycle matter in the ecosystem.
7.
FLASHCARD QUESTION
Front
What is nitrogen fixation?
Back
Nitrogen fixation is the process by which certain bacteria convert atmospheric nitrogen into a form that plants can use.
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