Nitrogen Cycle

The process of plants absorbing usable nitrates from the soil with their roots is known as ____.

• nitrification

• assimilation

• fixation

• denitrification

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

How do nitrates that are absorbed by plants get into the bodies of animals?

• through the food web

• through the atmosphere

• from the soil

• precipitation

Tags

NGSS.MS-LS2-3

The process of decomposers like fungi & bacteria breaking down dead organic matter & waste material and turning nitrogen into ammonia is known as ____.

• ammonification

• nitrification

• fixation

• denitrification

Tags

NGSS.MS-LS2-3

The process of bacteria changing ammonia to usable nitrates is known as _____.

• nitrification

• assimilation

• fixation

• denitrification

Tags

NGSS.MS-LS2-3

The process of bacteria in the soil changing atmospheric nitrogen to ammonia is known as ______.

• nitrification

• assimilation

• fixation

• denitrification

Tags

NGSS.MS-LS2-3

How do nitrates formed in the atmosphere during lightning fixation get to the soil?

• the sunlight

• precipitation

• assimilation

• fixation

Tags

NGSS.MS-LS2-3

True or False...The nitrogen in the atmosphere is in a usable form and can be absorbed by living things.

• True

• False

True or False...Nitrates are passed from plants to animals when the animals eat the plants or when they eat other animals.

• True

• False

Tags

NGSS.MS-LS2-3

According to this diagram, plants use nitrogen to make _________________________

• bacteria

• animals

• proteins

• decomposers

Tags

NGSS.MS-LS2-3

According to this diagram, plants absorb

• nitrates

• nitrogen fixing bacteria

• animals

• decomposers

Tags

NGSS.MS-LS2-3