Food Webs & Energy
What type of organism makes its own food?
Primary Producer
What is the area called where the water meets the land?
Intertidal zone
What are plant-like plankton called?
Phytoplankton
What term describes the physical place where an organism lives?
Habitat
In the food web:
Zooplankton --> Filter Feeders --> Crabs
Crabs get their energy from?
Filter Feeders
Name 2 primary producers.
Seaweed, phytoplankton, algae or seagrass
In what zone does the most photosynthesis occur?
Photic zone
What are animal-like plankton called?
Zooplankton
What term describes an organism’s role or job in its ecosystem?
Niche
In the food web:
Zooplankton --> Filter Feeders --> Crabs
What would happen to the filter feeders if the population of Crabs increased?
The population of filter feeders would decrease.
How much energy is transferred to the next trophic level?
Approximately 10%
What group of organisms perform photosynthesis and give us 50% of our oxygen?
Phytoplankton
Which two are abiotic factors?
Coral Polyps (Baby Coral)
Sand
Water
What relationship occurs when both organisms benefit?
Mutualism
Who gets the energy and how much (%), when a primary consumer (herbivore) eats a producer?
10% of the producers energy is given to the consumer.
Phytoplankton contain 6,000 calories. How many calories are available to the primary consumers that eat them?
600 calories
Name an abiotic factor that can influence the distribution of life in the ocean.
Waves (tides), weather (temps), or pollution/environmental impacts.
Organisms challenging each other for resources is called?
Competition
What relationship occurs when one organism benefits and the other is harmed?
Parasitism
Does the atmosphere outside of the water (Air, nitrogen, carbon) influence the abundance of organisms in the ocean?
No.
A food chain is shown below:
Phytoplankton → Zooplankton → Small fish
If phytoplankton contain 5,000 calories, how many calories will be available to the small fish?
50 calories
What would happen if a bottom level trophic level, needed to get its energy from an upper level?
There wouldn't be enough food/energy.
What is inherited variation?
A trait passed down from parents to offspring.
What relationship occurs when one organism benefits and the other is neither helped nor harmed?
Commensalism
A population grows rapidly and then levels off when it reaches its carrying capacity. What type of growth is this?
Logistic growth