PNB
Ocean Zones
Where PNB Live
Food Chain
Classify the Organisms
100
What is plankton?
Organisms that drift with the current.
100
How many ocean zones are there?
Three
100
Which zone(s) do nekton organisms live in? Why?
Nekton organisms live in all three zones because they can swim freely through the zones.
100
What type of organism is at the bottom of every food chain?
plants
100
Is a whale phytoplankton, zooplankton, nekton, or benthos?
Nekton
200
What is nekton?
Organisms that swim freely, meaning they can swim against the current.
200
In the Euphotic Zone... 1. How much sunlight does it get? 2. What is the temperature of the water like? 3. How deep does the zone go?
1. A lot of sunlight 2. Warm water 3. 600 feet
200
Where do zooplankton live?
Zooplankton live in all three zones because they drift with the current and there is a current that moves through all the zones.
200
Where do plants get their energy from?
The sun
200
Is a crab phytoplankton, zooplankton, nekton, or benthos?
benthos
300
What is benthos?
Organisms that walk on the ocean floor.
300
In the Disphotic Zone... 1. How much sunlight does it get? 2. What is the temperature of the water like? 3. How deep does the zone go?
1. A little sunlight 2. Cold water 3. 3,000 feet
300
Which zone(s) do phytoplankton live in?
Phytoplankton only lives in the Euphotic Zone because it is the only zone with enough sunlight for them to survive (because they are plants)
300
What two things are transferred between organisms in a food chain?
Energy and nutrients
300
Is tuna phytoplankton, zooplankton, nekton, or benthos?
Nekton
400
What is zooplankton?
animals that drift with the current
400
In the Aphotic Zone... 1. How much sunlight does it get? 2. What is the temperature of the water like? 3. How deep does the zone go?
1. No sunlight 2. Very cold water 3. 20,000 feet
400
Which zones do benthos organisms live in? Why?
Benthos organisms live in all three zones because there is an ocean floor in all three zones.
400
How do humans impact ocean food chains? (2 reasons)
Overfishing and pollution
400
Is a jellyfish phytoplankton, zooplankton, nekton, or benthos?
zooplankton
500
What is phytoplankton?
plants that drift with the current
500
What causes the ocean zones?
The amount of sunlight and the temperature of the water (different densities)
500
Which zone(s) could you find seaweed? Why?
The Euphotic Zone because it is a plant, so it needs a lot of sunlight.
500
What is the job of the decomposer?
To break down dead organisms and put the nutrients back in the soil.
500
Is algae phytoplankton, zooplankton, nekton, or benthos?
phytoplankton
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