Trophic Levels and Feeding Relationships

What is the trophic level of the diatom (phytoplankton)?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is the trophic level of the krill (zooplankton)?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

Tags

NGSS.MS-LS2-3

What is the trophic level of the arctic cod?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

When the ringed seal is feeding on krill (zooplankton), it is a __________ consumer.

• primary

• secondary

• tertiary

• quaternary

Tags

NGSS.MS-LS2-3

When the ringed seal is feeding on Arctic cod, it is a _____ consumer.

• primary

• secondary

• tertiary

• quaternary

Tags

NGSS.MS-LS2-3

The polar bear is a _________ consumer when it is eating Arctic cod.

• primary

• secondary

• tertiary

• quaternary

Tags

NGSS.MS-LS2-3

At which tropic level is the orca when it consumes Artcic cod?

• primary consumer

• secondary consumer

• tertiary consumer

• quaternary consumer

Tags

NGSS.MS-LS2-3

How can the orca be a 5th level consumer?

• phytoplankton --> krill --> ringed seal --> polar bear--> orca

• phytoplankton --> krill --> arctic cod --> orca

• phytoplankton --> krill --> arctic cod --> ringed seal --> polar bear--> orca

• phytoplankton --> krill --> arctic cod --> polar bear--> orca

Tags

NGSS.MS-LS2-3

Which organism can be considered an herbivore?

• phytoplankton

• zooplankton

• arctic cod

• ringed seal

Tags

NGSS.MS-LS2-2

Which organisms in the food web compete with each other for food sources?

• krill and arctic cod

• polar bear and orca

• krill and ringed seal

• phytoplankton and zooplankton

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1