Biogeochemical Cycles

In the nitrogen cycle, the bacteria that replenish the atmosphere with N2 are

• Denitrifying bacteria

• Nitrogen-fixing bacteria

• Nitrifying bacteria

• Ammonifying bacteria

Tags

NGSS.MS-LS2-3

Carbon dioxide is returned to the atmosphere primarily by

• consumption by animals

• combustion and cellular respiration by consumers

• elimination of waste by animals

• photosynthesis by producers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Carbon cycles through the biosphere in all of the following processes EXCEPT

• photosynthesis

• transpiration

• burning of fossil fuels

• decomposition of plants and animals

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Nitrogen fixation is carried out mainly by

• humans

• plants

• animals

• bacteria

Which of the following steps of the water cycle is the only step that HAS to have living organisms in order to happen?

• Transpiration

• Condensation

• Evaporation

• Precipitation

Tags

NGSS.MS-LS2-3

Describe an example of how NON-HUMAN living organisms participate in the WATER cycle. You must include the name of the organism, the step of the cycle it is involved in, and what it does specifically in that step (2 points)

Tags

NGSS.MS-ESS2-4

Describe an example of how NON-HUMAN living organisms participate in the CARBON cycle. You must include the name of the organism, the step of the cycle it is involved in, and what it does specifically in that step (2 points)

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Describe an example of how NON-HUMAN living organisms participate in the NITROGEN cycle. You must include the name of the organism, the step of the cycle it is involved in, and what it does specifically in that step (2 points)

Tags

NGSS.MS-LS2-3

DESCRIBE an example of how humans can negatively impact the water cycle, the carbon cycle, and the nitrogen cycle. Note: you should be describing 3 examples, 1 for each cycle! (6 points)

Tags

NGSS.MS-ESS2-4

BONUS:

Multi-cellular eukaryotic autotrophs belong to which kingdom?

• Animalia

• Fungi

• Plantae

• Protista

Tags

NGSS.MS-LS4-2