Marine Food Webs

If the adult herring were overfished

• the sand eels would overpopulate

• the food web would be more stable

• there would be less water fleas

• nothing would happen

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

If pollution kills the algae in the ocean, the rest of the animals...

• will die - there is not food at the base of the food chain

• will be unaffected

• will increase, since algae makes them sick

• all of these choices

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Most marine producers need to float or be in clear shallow water because...

• they need sunlight to make food

• they only live in tropical water

• there are fewer predators in shallow water

• there are less people near the shore

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

One species the jellyfish feeds on is

• barnacle larvae

• bacteria

• adult herring

• copepods

Tags

NGSS.MS-LS2-1

Explain what the black dots on this diagram represent and what happens as trophic level increases:

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Use the food web: Fishers have been catching mullet, a type of fish, at faster rates than ever before. Which of the following statements is a reasonable prediction of what might happen?

• The number of phytoplankton would increase.

• Terns would have less food available to them.

• New species would move into the area.

• Zooplankton would become extinct.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which species would be most directly affected by an increase in the scorpionfish population?

• hawkfish

• barnacle

• mullet

• zooplankton / copepods

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A food web is an example of a model in science.

• true

• false

Tags

NGSS.MS-LS2-3

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%

• 10%

• 100%

• 1000%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Lower trophic levels have higher concentrations of persistent lipid soluble toxins like PCBs than higher trophic levels

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4