Cycling of Matter in Ecosystems

Quiz
•
Science
•
7th Grade
•
Hard
+2
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
According to the principles of biogeochemical cycles, which statement is true about matter?
Matter can be created in laboratories.
Matter can be destroyed by natural processes.
Matter cannot be created or destroyed.
Matter is only recycled in the abiotic environment.
Tags
NGSS.MS-LS2-3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What role do denitrifying bacteria play in the nitrogen cycle?
They convert atmospheric nitrogen into usable forms for plants.
They release nitrogen gas back into the atmosphere by breaking down dead matter and waste.
They fix nitrogen from the atmosphere into the soil.
They consume nitrogen from the soil and use it for plant growth.
Tags
NGSS.MS-LS2-3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How is nitrogen transferred from the soil to consumers in the food web?
Through water absorption by consumers.
By consumers directly inhaling nitrogen gas.
Through consumption of producers that have absorbed nitrogen.
By microbial action in the stomachs of consumers.
Tags
NGSS.MS-LS2-3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens during the process of denitrification in the nitrogen cycle?
Ammonium is converted into nitrites.
Nitrogen compounds are reduced to gaseous nitrogen.
Atmospheric nitrogen is fixed into the soil.
Nitrogen is incorporated into organic matter.
Tags
NGSS.MS-LS2-3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens when rocks containing phosphorus are broken down?
Phosphorus is absorbed by animals directly
Phosphorus evaporates into the atmosphere
Phosphorus is released as phosphates into the soil
Phosphorus forms new rocks
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How is phosphorus transferred from plants to animals in the phosphorus cycle?
Through water absorption
By animals eating the plants
Through photosynthesis
By air transfer
Tags
NGSS.MS-LS2-3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens to phosphorus when animals and plants die?
It evaporates into the atmosphere.
It is used immediately by other living organisms.
Decomposers release it back into the soil, continuing the cycle.
It becomes inert and non-reactive.
Tags
NGSS.MS-LS2-3
NGSS.MS-LS2-4
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