This process removes Carbon from the atmosphere
What is photosynthesis?
This is the starting energy source that producers use
What is sunlight?
The maximum number of individuals that can be supported in an ecosystem with a defined amount of resources
What is carrying capacity?
Name and give an example of this type of factor: Not alive and never was alive.
Abiotic Factor: Examples include water, nutrients, CO2, rock, sun, heat, climate, etc...
A decrease in organisms that occupy this ecological role will have the greatest impact on the ecosystem
What are producers?
The majority of freshwater in the world can be found in this format
What is frozen or icecaps and glaciers?
This term refers to organisms that eat both plants and animals
What is an omnivore?
Competition and predation are examples of this type of limiting factor
What is density dependent?
This is another term for producers/plants and means that the organism can make its own food
What is an autotroph?
This pyramid is correctly displaying what rule?
What is the 10% rule?
These organisms recycle nutrients back to the soil
What are decomposers?
OR
What are fungi and bacteria?
This is the amount of energy transferred from one trophic level to another
What is 10%?
The more two organisms overlap in ____________, the greater the amount of competition
What is niche?
This is the ecological hierarchy from smallest to largest.
Individual, population, community, ecosystem
When organisms have a set amount of food, we see this type of population growth
What is logistic growth?
These are the four most abundant elements in living organisms (atomic symbols are okay)
What are Carbon (C), Oxygen (O), Hydrogen (H), and Nitrogen (N)?
Describe how biodiversity is measured
Species Richness: the number of different species
Species evenness: How proportional species are to one another or how balanced their distribution is.
This term refers to an organism which is introduced to an area and negatively impacts the native organisms
What is an invasive species?
Explain why there are less predators at the top of a food web.
There is not enough energy available to support larger population.
If a hawk eats a rabbit that eats grass with 862kCal of energy, the hawk is getting this much energy.
What is 8.62 kCal ?
Why can't plants and animals use N2 found in the atmosphere (be specific!)
N2 has a triple bond which is very difficult to break
This is what would happen if we removed the rabbit from this food web (name 2 organisms and how they would be affected)
What is a decrease in the fox population and an increase in the grass population?
Draw the type of graph you would expect to see if you introduced an organism into a controlled environment with a natural food supply and no known predators
A more diverse community can withstand shifting environmental conditions and maintains more stable populations
Draw a complete food web for the following ecosystem. The grasshopper and ground squirrel are both herbivores. The grasshopper is eaten by the scorpion. The squirrel and the scorpion are both eaten by the kit fox. The squirrel is also eaten by the golden eagle.