
Biogeochemical Cycles for Ecology
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a biogeochemical cycle?
Back
A biogeochemical cycle is the movement of elements and compounds through biological, geological, and chemical processes in the environment.
Tags
NGSS.MS-ESS2-1
NGSS.MS-ESS2-4
NGSS.MS-LS2-3
2.
FLASHCARD QUESTION
Front
What is nitrogen fixation?
Back
Nitrogen fixation is the process by which nitrogen gas (N2) is converted into ammonia (NH3) or related compounds in soil, making nitrogen available to plants.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-3
NGSS.MS-LS2-4
3.
FLASHCARD QUESTION
Front
What role do decomposers play in the nitrogen cycle?
Back
Decomposers break down dead organisms and waste, converting organic nitrogen back into ammonium (NH4+), which can be used by plants.
Tags
NGSS.MS-LS2-3
4.
FLASHCARD QUESTION
Front
What is ammonification?
Back
Ammonification is the process by which decomposers convert organic nitrogen from dead organisms and waste into ammonium (NH4+).
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-3
5.
FLASHCARD QUESTION
Front
What is nitrification?
Back
Nitrification is the process by which ammonium (NH4+) is converted into nitrites (NO2-) and then into nitrates (NO3-) by bacteria.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-3
NGSS.MS-LS2-4
6.
FLASHCARD QUESTION
Front
What is the significance of legumes in the nitrogen cycle?
Back
Legumes host nitrogen-fixing bacteria in their root nodules, which convert atmospheric nitrogen into a usable form for the plant, benefiting both the plant and the bacteria.
Tags
NGSS.MS-LS2-3
7.
FLASHCARD QUESTION
Front
What is the process of denitrification?
Back
Denitrification is the process by which nitrates (NO3-) are converted back into nitrogen gas (N2), returning nitrogen to the atmosphere.
Tags
NGSS.MS-LS2-3
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