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WorksheetsChapter 16 & 17
Total questions: 34
Worksheet time: 18mins
Which of the following ecosystems is the most productive and biodiverse?
Coral reefs
Mangroves
Estuaries
Open ocean ecosystems
Select the two main factors that limit coral reefs.
Physical factors
Biological factors
Temperature and pressure
Competition
What is the natural separation of an ocean's water into horizontal layers by density?
Ocean stratification
Pressure dispersal
Water density stratification
Horizontal stratification
What type of organism has a mutualistic relationship with coral by living inside coral's cells?
Zooxanthellae
Phytoplankton
Zooplankton
Diatoms
When looking at a food web of coral reefs, what is it primarily based around?
Zooxanthellae in corals
Phytoplankton
Zooplankton
Fish in coral reefs
True or False: The coral benefits the zooxanthellae by providing carbon dioxide, nitrogen, and phosphorus in excretory products.
True
False
Which of the following is a photosynthetic bacteria that participates in the nitrogen cycle?
Cyanobacteria
Algae
Fungi
Protozoa
Which of the following organisms contribute to the detritus pool?
Coral and sea stars
Fish and invertebrates
Seaweed and algae
All of the above
What two main components do coral fight for on the reef?
Space
Light
Food
Energy
True or False: Some coral produce toxic or foul-tasting chemicals to fight for space on a reef.
True
False
Why is it important to have grazers in a coral reef?
Grazers help the structure of coral reefs
Grazers keep seaweeds from taking over coral surfaces
Grazers help coral move from place to place
Grazers keep coral in place and avoid movement
True or False: Zooplankton is a photosynthetic symbiont.
True
False; Zooxanthellae
What type of symbiosis results in one species not being able to survive without the other?
Commensalism
Mutualism
Parasitism
Facultative symbiosis
Obligate symbiosis
What type of symbiosis results in both species being able to live apart from each other?
Commensalism
Mutualism
Parasitism
Facultative symbiosis
Obligate symbiosis
What portion of the epipelagic zone is the waters over the continental shelf?
Neritic
Oceanic
Pelagic
What portion of the epipelagic zone is the waters beyond the continental shelf?
Neritic
Oceanic
Pelagic
Which pelagic zone is the warmest and most well-lit?
Epipelagic zone
Mesopelagic zone
Abyssopelagic zone
Hadopelagic zone
Select all of the following limitations of the epipelagic zone.
No sea floor for attachment
No places for prey to hide from predators
No easy access to coral reefs
Lack of primary production
Which of the following is plankton that performs photosynthesis?
Phytoplankton
Zooplankton
Which of the following is plankton that are heterotrophs?
Phytoplankton
Zooplankton
Select all the following types of phytoplankton.
Diatoms
Dinoflagellates & Cyanobacteria
Coccolithophorids & Silicoflagellates
Meroplankton & Holoplankton
Select the types of zooplankton.
Diatoms
Dinoflagellates & Cyanobacteria
Coccolithophorids & Silicoflagellates
Meroplankton & Holoplankton
What type of organisms are classified as plankton for their entire lives?
Diatoms
Dinoflagellates & Cyanobacteria
Holoplankton
Meroplankton
What type of organisms are classified as plankton for a portion of their lives?
Diatoms
Dinoflagellates & Cyanobacteria
Meroplankton
Holoplankton
If a killer whale is classified as a nekton organism, what does that mean?
It is an organism that can swim independently of currents.
It is attached to the seafloor and cannot move.
It lives at or near the sea floor.
It is attached to the shore and cannot move.
How can an organism living in the epipelagic stay afloat?
a. Increasing or decreasing the amount of air in their swim bladder
b. Increasing water resistance (drag)
c. Decreasing water resistance (drag)
d. Both A and B
What are some ways an organism can have increased drag?
Flat bodies
Spines or appendages
Wide tail fins
Large eyes
If a floating organism is classified as neuston, what does that mean?
The organism has part of its floating above the surface, and part of its body below the surface
The organism floats just beneath the surface
The organism is submerged and does not float
The organism is completely above the water surface
If a floating organism is classified as pleuston, what does that mean?
The organism floats just beneath the surface
The organism has part of its floating above the surface, and part of its body below the surface
The organism is submerged and does not float
The organism is completely above the water surface
True or False: Having well-developed sense organs, like eyes, is a disadvantage to organisms in the epipelagic.
True
False; advantage
Cartilaginous and bony fish have a ___, and cetaceans use ___ to detect prey and predators.
Lateral line; echolocation
Echolocation; lateral line
Lateral line; sense organs
Caudal fin; echolocation
Select the different ways organisms can have protective coloration.
Camouflage
Transparency
Countershading
Rete Mirable
What is a network of blood vessels that in some fishes functions as a heat-exchange system to help keep the internal body temperature higher than that of the water?
Myoglobin
Rete mirable
Caudal peduncle
Red muscle principle
What is a negative effect of participating in vertical migrations?
Avoiding predators at different depths
Catching prey in shallower depths
Wasting energy moving from one depth to another
Enhancing reproductive success
