Food Chains
All the energy in a food chain originates from
What is the sun
Living components of an ecosystem (ex: plants, animals, bacteria).
What are biotic factors?
Nitrogen is most prevalent where on the planet?
What is the atmosphere?
The stage we released the atlantic salmon at was:
What are alevin?
Humans have fished wild Cod (fish) stocks to dangerously low levels. This is an example of
What is overexploitation?
When the wolves were removed from Yellowstone National Park, all the other species below the wolf on the food chain were negatively impacted. In biology, this is known as a ___________
What is a trophic cascade?
Encompasses both the physical and environmental conditions the species needs to survive, as well as the interactions the species has with others
What is an ecosystem?
How is carbon removed from the atmosphere in the carbon cycle?
What is photosynthesis?
The ability to adapt to both fresh and saltwater environments
What is anadromous?
Mercury accumulates as it moves up the food chain. This is why you should not eat fresh water or large predator fish daily. this is known as:
What is biomagnification?
The bottom of the food chain is called a
What is a primary producer?
The entire planet where all life is found
What is the biosphere?
When ice goes directly to water vapor - skipping the liquid phase.......
what is sublimation?
Atlantic Salmon do not regulate their body temperature, meaning their body temperature is the same as the outside environment. They are an example of a(n)
What is an ectotherm?
Nitrogen based fertilizers run off into water ways causing massive algae blooms and then die off leading to lowered water quality and oxygen content. This process is known as:
What is eutrophication?
A feeding stage on an ecological pyramid or food chain.
What is a trophic level?
What is community?
In nitrogen fixation, ___________ make nitrogen gas into a usable form for other organisms
Salmon are at risk of going extinct.... the term for that is
What is endangered?
This type of population growth occurs when a population has reached it's carrying capacity
The very top of the food chain is known as a(n)?
What is an apex predator
List the levels of ecological organization from smallest to largest
What is organism, population, community, ecosystem, biome, biosphere?
The burning of fossil fuels has the greatest impact on which cycle?
What is the carbon cycle?
Describe 3 challenges salmon face
1/warmer waters affect cold water species like salmon
2/dams impede passageway
3/pollution of water (salmon need clean water)
4/overfishing
List three impacts of climate change
What is increased average temperature, sea level rise, more extreme weather events?