Nitrogen cycle

What converts nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

• herbivores

Organisms that need nitrogen to survive.

• only plants

• only animals

• only bacteria

• all living things

Tags

NGSS.MS-LS2-1

How do 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

According to this diagram, plants use nitrogen to make _________________________

• bacteria

• animals

• proteins

• decomposers

According to this diagram, plants absorb

• nitrates

• nitrogen fixing bacteria

• atmospheric nitrogen

• decomposers

According to this diagram, animals get proteins from eating ________________________

• decomposers

• bacteria

• plants

• sunlight

Tags

NGSS.HS-LS1-6

The process that allows organisms to use nitrogen

• assimilation

• denitrification

• fixation

• ammonification

A correct path that nitrogen could take would be

• air -> animals -> plants -> bacteria

• animals -> air -> bacteria -> plants

• bacteria -> air -> plants -> animals

• air -> bacteria -> plants -> animals

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What do free living bacteria in the soil do?

• Make clouds

• Turn atmospheric nitrogen into nitrates

• Make carbon dioxide for plants to go through photosynthesis

• Help plants take in water

Tags

NGSS.MS-LS2-3

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

• nitrogen composition
• ammonia 
• nitrogen fixation
• denitrification