The Nitrogen Cycle + The Phosphorus Cycle

How animals get the nitrogen they need

• from the air they breathe
• from the water they drink
• from the food they eat
• from the Sun

Tags

NGSS.MS-LS2-3

Organisms that play a role in the nitrogen cycle

• only plants
• only animals
• only bacteria
• plants, animals, & bacteria

Tags

NGSS.MS-LS2-3

All plants have nitrogen fixing nodules on their roots.

• True
• False

Organism that breaks down dead plants & animals and releases nitrogen back into atmosphere

• bacteria
• plants
• animals
• producers

Tags

NGSS.MS-LS2-3

How plants get the nitrogen they need

• from the air
• from the soil or water in which they live
• from the Sun
• from broken down rocks

Tags

NGSS.MS-LS2-1

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

• nitrogen composition
• ammonia 
• nitrogen fixation
• denitrification

Plants and animals cannot use nitrogen directly from the air.

• True
• False

Tags

NGSS.MS-LS2-1

What happens when organisms die and decay? 

• Their bodies are lifted up
• Their nitrogen returns to the soil
• they keep their nitrogen
• They stay on earth forever

Tags

NGSS.MS-LS2-3

Nitrification happens in the ______

• Air 
• Soil 
• Ground Water 
• Plants 

Tags

NGSS.MS-LS2-3

Nitrification happens in the ______

• Air 
• Soil 
• Ground Water 
• Plants 

Tags

NGSS.MS-LS2-3