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WorksheetsOcean Zones - Shore to Floor
Total questions: 62
Worksheet time: 32mins
The two different states of the Intertidal Zone include:
Low tide and the splash zone
Low tide and medium tide
Low tide and high tide
High tide and the splash zone
Species living in the Intertidal Zone must be able to survive which changes?
Moisture
Temperature
Salinity
All of the above
Ecosystem found on marine shorelines alternating between high and low tide
Abyssal Zone
Coral Reef
Intertidal Zone
Open Ocean
Some animals hide under plants or burrow into the sand to avoid too much exposure to sun. This is a challenge related to _____.
moisture
salinity
temperature
wave action
Barnacles can seal themselves from the outside world to keep themselves moist. This is a challenge related to _____.
moisture
salinity
predators
wave action
Seaweed have leaves that tough, preventing them from being torn by the waves. This is a challenge related to _____.
salinity
wave action
temperature
predators
The "clam up" strategy can be used by an organism to do what?
keep water/moisture inside of their bodies
maintain body temperature
cool off their bodies
access more food sources
What are filter feeders?
A large pile of living organisms and the animals that live among them.
An organism that attaches onto another organism and feeds off of it.
Animals that feed by removing tiny bits of food from the water.
Animals that use sunlight to obtain nutrients.
What are corals?
living organisms
non-living structures
abiotic
terrestrial
Which marine environment has the most biodiversity?
Sandy Beach
Rocky Coast
Estuary
Coral Reef
Coral Reefs are found in shallow, clear, warm water because there is
lots of sunlight for the symbiotic algae (zooxanthellae) that live with the polyps
not lots of sunlight for the symbiotic algae (zooxanthellae) that live with the polyps
no good reason, it just feels nice
all of these choices are correct
What percentage of the ocean's sea life lives in coral reefs?
10 -15%
20%
45%
25%
Coral polyps eat algae and small animals called planktons.
True
False
Based on the food web, which is a producer?
turtle grass
shrimp
clownfish
nurse shark
Based on the food web, where does the turtle grass gets its food or energy?
sea coral
sea turtle
shrimp
sun
Coral reefs are homes to nearly 25% of life in the ocean.
True
False
When otters are removed from an ecosystem..
The urchin population rises
The kelp population drops
The kelp gets eaten more quickly than it can regrow
All of the answers occur
What do both land plants and marine plants do?
grow seeds
carry out photosynthesis
get nutrients from the soil
take in water from their roots
What happens to decomposed material?
It disappears.
Its components are recycled into the soil, air, and water.
Herbivores eat it.
Omnivores eat it.
Which of these terms describes an organism that gets its energy from breaking down dead material?
Omnivore
Carnivore
Herbivore
Decomposer
Which of the following factors do NOT limit the growth of kelp forests?
Salinity
Light
Space
Temperature
Why must kelp live in deep, calm waters?
nutrients are more abundant in deep, calm waters than in warm, turbid waters
the photosynthetic pigments of kelp are more efficient in the depths than in the shallows
rocky terrain, the preferred substrate of kelp, is only found in deep, calm waters
the holdfasts are less likely to be ripped off the rocks in calm waters than in turbid waters
How might Kelp counteract the activity of grazers like sea urchins?
Float on the surface of the water with their holdfasts suspended in the water column
Produce bad-tasting or toxic chemical to deter the sea urchin from eating it
Produce blades that are several meters in length to maximize its photosynthetic capabilites
Attach their holdfasts into sandy sediment to hide them from the grazers
Some species of kelp are used in ice cream.
True
False
When otters are removed from an ecosystem..
The urchin population rises
The kelp population drops
The kelp gets eaten more quickly than it can regrow
All of the answers occur
Sea otters often wrap themselves in kelp while sleeping
True
False
The skeleton of a reef (of the coral plant) is formed from ______________, and is made of _______
zooxanthallae, calcium hydride
zooxanthallae, calcium carbonate
coral, calcium carbonate
coral, calcium hydride
Which of the following shows a correct predator prey action (hint: the arrow points toward the prey)?
shrimp 🡪 shark
sea urchin 🡪 sea otter
sea otter 🡪 kelp
sea urchin 🡪 kelp
Why is the kelp macroalgae (plant) important in the survival of many benthic invertebrate species?
it protects them from predators
it provides an important food source
it provides a habitat for them to live in/on
all
Coral reefs can be found in latitudes where the waters are
warm and clear
warm and murky
cold and clear
cold and murky
What do both land plants and marine plants do?
grow seeds
carry out photosynthesis
get nutrients from the soil
take in water from their roots
Kelp forests resemble
volcanic areas
jungles
deserts
swimming pools
The picture shows a
coral reef
kelp forest
open ocean
estuary
3 ecosystems, in order from LOWEST to HIGHEST diversity, are:
estuary, sandy beach, rocky shore
sandy beach, kelp forest, coral reef
coral reef, open ocean, sandy beach
sandy beach, coral reef, rocky shore
What happens when a keystone species is removed from the ecosystem?
All the species become abundant
One species flourishes
The food chain is out of balance
Resources are abundant
How does the marine ecosystem effect you?
Jobs decrease
No effect
Fisheries are limited or close
No abalone for dinner
The two different states of the Intertidal Zone include:
Low tide and the splash zone
Low tide and medium tide
Low tide and high tide
High tide and the splash zone
Species living in the Intertidal Zone must be able to survive which changes?
Moisture
Temperature
Salinity
All of the above
Only exposed during low tide; contains the highest biodiversity
High tide
Medium tide
Low tide
Ecosystem found on marine shorelines alternating between high and low tide
Abyssal Zone
Coral Reef
Intertidal Zone
Open Ocean
The Splash Zone can be described as
Lies between medium and low tide
Lies between high and low tide
Area above the high tide zone in which animals survive by getting splashed by the waves.
Never receives water
The "clam up" strategy can be used by an organism to do what?
keep water/moisture inside of their bodies
maintain body temperature
cool off their bodies
access more food sources
Competition for which resource is a dominant factor in the rocky intertidal zone?
food
light
oxygen
space
Besides fluctuations in salinity and water levels, intertidal organisms must also withstand wide variations in:
Temperature.
Light level.
Sediment deposition.
Current velocity.
Vertical zonation on rocky shores is mostly the result of differences in tolerance to:
Wave action
Exposure.
Predation.
Light.
3) Kelp forests grow in the
intertidal zone.
neritic zone.
deep zone.
surface zone.
What are coral reefs often compared to?
forests
gardens
rainforests
deserts
What percentage of the ocean's sea life lives in coral reefs?
10 -15%
20%
45%
25%
Coral reefs are endangered by
climate change
overfishing
pollution
all of the above
Coral reefs are home to how many species?
thousands
billions
hundreds
millions
What is the largest coral reef on the planet?
Rainbow Reef, Fiji
Great Chago Archipelago, Indian Ocean
Amazon Reef, Brazil
Great Barrier Reef, Australia
What are corals?
living organisms
non-living structures
abiotic
terrestrial
The relationship between coral and their photosynthetic partners is...?
Parasitic
Mutualistic
Competitive
Commensalistic
Food webs are the root of all energy flow in diverse ecosystems, how do corals promote stability in food webs?
Through primary productivity and nutrient supply
Through eating organisms in trophic level 3
Through maturation of photosynthetic algae
Through serving as a habitat for energy to flow
