Marine Food Webs and Food Chains

Which of the following would act as a primary producer?

• Phytoplankton

• Zooplankton

• Whales

• Fish

Tags

NGSS.MS-LS2-3

What is a keystone species

• A species all other animals can exist without

• A species that all other animals cannot exist without, If removed from the ecosystem it will collapse

• A door species

• A fish

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

How many trophic levels are there?

• 1

• 2

• 3

• 4+

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

You are modeling energy flow how much energy is lost at each trophic level? How much is conserved?

• 90% and 10%

• 70% and 30%

• 60% and 40%

• 100% and 0%

Tags

NGSS.MS-LS2-3

_________ have the largest biomass and amount of usable energy

__________ have the least amount of biomass and usable energy

The crab in the image above is at what trophic level?

The Blue Whale in the image above is at what trophic level?

Using the text box and arrows -> Please provide an example of a Marine Food Chain Example: Primary Producer - > Primary Consumer -> Secondary Consumer - > Tertiary Consumer Use actually organism for your model.

What is a Trophic Cascade?