Ecology unit overview
Flashcard
•
Biology
•
9th - 10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the primary reason humans cannot obtain nitrogen from the atmosphere by breathing?
Back
Humans lack the mechanism to break the triple bond of nitrogen (N≡N) between the nitrogen atoms.
2.
FLASHCARD QUESTION
Front
What role do bacteria play in the nitrogen cycle?
Back
Bacteria break down dead plants and animals, releasing nitrogen back into the atmosphere.
3.
FLASHCARD QUESTION
Front
Can plants and animals use nitrogen directly from the air?
Back
No, plants and animals cannot use nitrogen directly from the air.
4.
FLASHCARD QUESTION
Front
What are 'producers' in an ecosystem?
Back
Producers are organisms that produce energy for the food chain, primarily through photosynthesis.
5.
FLASHCARD QUESTION
Front
What gas is produced by plants and used by animals?
Back
Oxygen is produced by plants and used by animals.
6.
FLASHCARD QUESTION
Front
What is the process by which plants convert sunlight into energy?
Back
Photosynthesis.
7.
FLASHCARD QUESTION
Front
What is the significance of the nitrogen cycle in ecosystems?
Back
The nitrogen cycle is crucial for recycling nitrogen in various forms, making it available for use by living organisms.
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