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WorksheetsCorals and Coral Reefs
Total questions: 20
Worksheet time: 11mins
What lives inside of hard corals?
black sea urchins
red algae
dinoflagellates
zooplankton
_______ & _______ are harmful to corals.
calcium carbonate & red algae
dinoflagellates & jellyfish
sedimentation & excess nutrient runoff
dinoflagellates & sedimentation
Parrotfish eat the limestone skeleton of coral and excrete the sand as waste. This is called
coral bleaching
eutrophication
sedimentaion
bioerosion
In eutrophication, excess nutrients cause ________ to bloom and overgrow coral.
algae
decomposers
sea urchins
fish
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
ENSO events (choose 2)
are also called El Niño
correlate to coral bleaching
produce abnormally cold water
are only confined to the coast of California
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
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
The type of reef shown here is
a fringing reef
a barrier reef
an atoll
a bleached reef
The body form of corals is
medusa
polyp
staghorn
both polyp & medusa
It's how corals feed.
by using their tentacles
food flows into it
parrotfish bring it food
it eats the calcium & CO2 from the water
The 2 substances coral need from seawater to make their hard skeletons (2 answers)
calcium
polyps
carbon dioxide
excess nutrients
2 types of reef-building corals are (2 answers)
sea fans
sedimentary
staghorn
brain
A medical use of coral
toothpaste
bone grafts
pain relief
sedative
Is permitted in the protective zones
dynamite fishing
dropping anchor
coral harvesting
snorkeling
2 Florida fisheries dependent on reefs
parrotfish
spiny lobsters
grouper
stone crabs
