WorksheetsUnit 6 Marine Ecosystems
Total questions: 36
Worksheet time: 18mins
The symbiotic relationship between the coral and its zooxanthellae is:
Mutualistic
Commensalistic
Parasitic
It's not symbiotic - it's actually a predator/prey relationship!
What is each individual coral organism known as?
Colony
Polyp
Anemone
Cnidaria
Which type of reef is known for its annular shape?
Fringing
Barrier
Patch
Atoll
What occurs during the third step of atoll formation?
Island fully subsides, leaving an atoll
Barrier reef forms around the island
Fringing reef grows around the island
Volcanic island forms
All coral bleaching events have to do with a change in water______________.
Salinity
pH
Temperature
Color
What word is the name of the dinoflagellate symbiont found inside coral tissue?
Symbiotinius
Coccolithophore
Cyanobacteria
Zooxanthellae
Which of the following are types of reefs?
Artificial
Atoll
Barrier
Fringing
During a hurricane, how do reefs protect the shoreline?
Cause upwelling, weakening tropical cyclones
Cause waves to break out to sea, preventing shoreline erosion
Prevent storm surge from occuring
Act as a wind break, slowing gusts
What is the area between the shoreline and the reef called?
Lagoon
Bay
Inlet
Peninsula
Which of the following are problems that tide pool organisms must deal with at low tide?
Low dissolved oxygen
High salinity
Wave action
High temperatures
a reef close to and surrounding newer volcanic islands or that boarders continental landmasses
fringing reef
barrier reef
patch reef
atoll
the gradual wearing away of a coral reef by the action of living organism (bioerosion) and physical factors such as storms
climate change
ocean acidification
reef erosion
bleaching
a partially enclosed, tidal, coastal body of water where fresh water from a river meets the salt water of the ocean
lagoon
atoll
estuary
barrier reef
Which ecosystem is this? : This is the lowest, deepest layer of the ocean; contains open plains, underwater vents/volcanoes, and canyons/trenches; there is no sunlight in this ecosystem, and the species that live here have extreme adaptations that allow them to survive
Deep sea
Open ocean
Intertidal zone
Coral reefs
Which ecosystem is this? : This is the largest marine ecosystem, and covers most of Earth's surface area; it includes all marine environments that are far from shore and that are still close enough to the surface to receive sunlight
Deep sea
Open ocean
Intertidal zone
Coral reefs
How would you name the stinging cells located in the epidermis of the tentacles that help capture food?
calyx
cenosarc
nematocyst
cenosarc
How can Mangroves stand still in the waves?
By their roots
By their stem
By their leaves
Mangrove trees are experts at filtering...
...sediment
...oxygen
...water
...salt
Why are mangroves important at a GLOBAL scale?
Protect against tropical storms
Carbon sinks
Provide employment
Tourism
What are these specialized roots?
phragmities
prop roots
onion roots
rhizomes
What is the general name for mangrove seeds?
prop roots
lenticles
propagules
seedlings
Which of the following would NOT be an abiotic factor affecting organisms living on the rocky shore?
constant wave action
tidal changes
predator prey relationships
changing salinity
Of the pairs listed below, choose the pair that matches the correct rocky shore zone with its organism
splash zone- sea star
splash zone-mussel
splash zone-periwinkle
splash zone-American Lobster
Which of the following is NOT a way organisms on the rocky shore are adapted to changing conditions
mussels close up to store water inside during low tide
algae have a slimy covering to protect from drying out
periwinkles have a slimy secretion that acts like concrete
sea anemones crawl to the low tide zone as the tide recedes
Which of the following is a abiotic factor which affect organisms on the rocky shore?
sand
dry soil
wave action
high pH
Which of the following is an adaptation of rocky shore organisms to prevent drying out?
the byssal threads of mussels
sealing of shell by bivalves
starfish suction cups
anemones jelly like bodies
What does desiccation mean?
Low tide
Drying out
high salinity
Acidic pH
Holes, cracks, or crevices where seawater collects as the tide goes out.
tide pools
tide zones
tidal waves
tidal shore
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 pattern of species living only in particular areas of rock in the intertidal zone is called
subsiding
succession
vertical zonation
climax community
Which of the following is not a threat to mangrove trees
Agriculture
Overfishing
Coastal development
Removal of trees for firewood
How does being vivipary help the red mangrove plant?
It allows the seedling to mature on the parent to increase chances of survival
It allows the seedling to mature in the mud to increase chances of survival
What is the function of lenticels on prop roots?
stabilizes the plant
secretes excess salt
helps in gas exchange
helps in pollination
