Marine Biology - Coral Reefs

Parrotfish eat the limestone skeleton of coral and excrete the sand as waste. This is called

• coral bleaching

• eutrophication

• sedimentaion

• bioerosion

Tags

NGSS.MS-LS2-3

_______ & _______ are harmful to corals.

• calcium carbonate & red algae

• dinoflagellates & jellyfish

• sedimentation & excess nutrient runoff

• dinoflagellates & sedimentation

Tags

NGSS.MS-LS2-1

In eutrophication, excess nutrients cause ________ to bloom and overgrow coral.

• algae

• decomposers

• sea urchins

• fish

Tags

NGSS.MS-LS2-3

Coral polyps secrete _____________ that creates the structure of the coral reef.

• sediments

• staghorn

• calcium carbonate

• camouflage

A _______ reef forms offshore and has a lagoon between it and the main coast.

• fringing

• barrier

• atoll

• sinking

Coral ecosystems require _________ water to prevent sediments from accumulating.

• sunny

• warm

• still

• moderate motion

Tags

NGSS.MS-ESS2-4

Which way do corals NOT get food?

• They have a symbiotic relationship with the genus Symbiodinium.

• They capture it using their tentacles.

• They receive nourishment from dinoflagellates.

• They consume excess nutrient runoff.

Clear, well-lit water is needed

• to prevent sediments from accumulating

• to keep parrotfish away

• for photosynthesis to occur

• for coral bleaching

Tags

NGSS.MS-LS1-6

Which is the correct number order for the steps to atoll formation?

(2)VOLCANO BECOMES EXTINCT AND SINKS

(3)REEF GROWS AS LAND SLIPS BENEATH SURFACE

(1)CORALS KEEP BUILDING; LAGOON FORMS WHERE ISLAND ONCE WAS

• 1, 2, 3

• 2, 3, 1

• 3, 1, 2

• 3, 2, 1

Coral bleaching is

• an overgrowth of algae

• when coral polyps reject the dinoflagellates living inside

• a disease that attacks coral

• how marine biologists clean up the coral

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-4