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WorksheetsCoral Reef : REVIEW
Total questions: 46
Worksheet time: 41mins
Corals are
tiny plant organisms that live in clear ocean waters
colourful calcium carbonate marine rock formations
small marine animal organisms
none of the above
What is the relationship between corals and zooxanthellae?
zooxanthellae grow on the corals and protect them from extreme sunlight
corals provide food for zooxanthellae when they photosynthesize
zooxanthellae grow at the expense of the corals
corals receive food from the zooxanthellae and the zooxanthellae get a safe home
Which reef is shown above?
The Belizean Reef
The Bucco Reef
The Bahamas Reef
The Great barrier Reef
Coral Reefs are primarily found in...
Cold and deep water
Warm and shallow water
This structure is a stinging cell
outer epidermis
nematocyst
stomach
basal plate
This shell is made of
calcium carbonate
sodium chloride
magnesium sulfate
basal plate
Ocean acidification is caused by:
Coral eat small floating animals called as ________________
zooplankton
prawns
fish
Which type of reef has a lagoon between the reef and the land?
Patch
Barrier
Atoll
Jellyfish, anemones and coral all belong to phylum:
Porifera
Cnidaria
Echinodermata
What is not a characteristic of cnidarians?
Radial symmetry
Circulatory system
Stinging cells
Single body cavity
Excessive amount of Carbon Dioxide are dissolving into the oceans, causing the pH of the water
to decrease
to increase
to stabilize
A starfish has 2 stomachs
True
False
This allows water to enter the water vascular system
Ampulla
Madreporite
Ossicles
Used to extend tube feet by pushing water in (like the turkey baster)
Madreporite
Ampulla
Radial Canal
What type of symmetry does a starfish have
Bilateral
Asymmetry
Radial
None
tube feet
digestive glands
madreporite
What phylum are sea stars in?
Mollusca
Arthropoda
Echinodermata
Bryozoa
The Crown of Thorns sea star feeds on:
sponge
coral
mollusks
The Crown of Thorns sea star populations are exploding because (pick 2)
their predators are being overfished
ocean acidification is helping them lay more eggs
algal blooms are giving the larvae more food to eat
they are a protected species that is no longer harvested
Which of these fish species is a predator of corals?
What is this Parrotfish doing?
hiding in an air bubble
hiding in a mucous bubble
changing color in a rock crevice
Which is true about SEXUAL DIMORPHISM as seen in parrotfish?
(pick 2)
all fish have a set gender from the moment they hatch
fish live in separate all male or all female schools
fish live in female schools with one male
females can transition to male if the male fish dies
This fish belongs to which group?
Parrotfish
Surgeonfish
Butterflyfish
Why is this group of fish called Surgeonfish?
they produce proteins that are used in surgical procedures
they have very good eyesight
they have sharp spines along their back and on either sides of their tails
This fish is known for its highly aggressive behaviors
butterflyfish
parrotfish
triggerfish
clownfish
These fish are most commonly found together in pairs
triggerfish
parrotfish
butterflyfish
clownfish
The hard keratin containing scales on the turtle shell
nematocysts
madreporite
scutes
ampullae
How many species of sea turtle exist today?
7
10
4
Which of the following internal organs can be found in a sea turtle? check all that apply
lungs
stomach
kidney
heart
How many turtles survive to breeding age for every 1,000 eggs laid? (with human interference)
500
200
20
2
Which of the following are human causes for decreases in turtle populations? pick all that apply
fishing by-catch
over-development of coastline habitats
plastic ocean pollution
climate change
Sea turtles navigate the oceans to return to the same beach where they hatched. How?
they use the stars
they use earths magnetic fields
they swim along the coastlines
they swim against the pull of gravity
What determines the gender of the sea turtle hatchlings?
size of egg
temperature of the nest
hormones released by the mother
How does plastic trash cause marine life and sea birds to starve?
They mistake plastic for food, which clogs their stomachs and doesn't leave any room for real food.
Plastic takes up space in the water so marine animals have no place to live.
The plastic in the ocean is so dense that the marine life cannot find food easily.
Plastic doesn't cause marine life or sea bird to starve: they're smart enough to know the difference between plastic and food.
Why are coral reefs considered the "rainforests of the ocean"?
because they are found in very warm climates
because they are found in regions where it rains often
because there are many different organisms (lots of biodiversity) found in coral reefs
What is the primary diet of a green sea turtle?
Crustaceans
Seagrass and algae
Small fish
Jellyfish
Which marine animal is known for its ability to regenerate lost limbs?
Sea cucumber
Octopus
Starfish
Sea urchin
What is the main cause of coral bleaching?
Overfishing
Increased water temperature
Pollution from oil spills
Excessive algae growth
Image B
Coral Atoll
Fringing Reef
Barrier Reef
How do sea stars eat?
with their large teeth
with their tentacles
with their lips
by turning their stomachs inside out
Coral Reefs have been called "the _________of the sea."
jungle
rain forest
habitats
biodiversity
