Biogeochemical Cycles

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria
• plants
• animals
• producers

Tags

NGSS.MS-LS2-3

Where is a lot of the CO₂ located on earth?

• space
• absorbed in the ground
• in the atmosphere acting as a greenhouse gas 
• in plants

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Photosynthesis

• absorbs CO₂
• releases CO₂

Tags

NGSS.MS-LS1-6

Which of the following add carbon dioxide to the atmosphere?

• volcanoes
• combustion of fossil fuels
• animal and plant respiration
• all of these

Tags

NGSS.MS-LS2-3

When plants perform __________________ they take carbon dioxide out of the atmosphere and release oxygen. 

• Cellular Respiration
• Photosynthesis
• Nitrogen Cycle 
• Aerobic Respiration

Carbon is dissolved into  ___. 

• the ocean
• the atmosphere
• animal bones
• photosynthesis

Nitrogen is available in the soil, and is available for _____ who pass it onto consumers through the food web.

• producers
• heterotrophs
• decomposers
• scavengers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

Phosphorous is passed from plants to ____ who eat them

• plants
• animals
• scavengers

Tags

NGSS.HS-LS2-3

_____ brings phosphorous into our waterways. .

• precipitation
• runoff
• transpiration
• condensation

Tags

NGSS.HS-ESS2-5

Denitrifying bacteria feed on _______, releasing nitrogen gas back into the atmosphere. 

• dead plants and animals
• living soil
• water
• algae