Ecological Relationships
Energy Cycling
Cycling of Matter
Human Impacts
Random Ecology
100
This is how one bird species that feeds on large seeds is able to coexist in the same tree as a bird species that feeds on small seeds.
They occupy different niches
100
Identify the herbivores in this food web.
Rabbit, Mouse, Grasshopper
100
This process puts excess carbon dioxide into the atmosphere in the carbon cycle.
Fossil Fuel Combustion
100
This is the process by which humans have caused Earth's average temperature to increase too much.
Global Warming
100
This term describes species like kudzu, which is from China, but was introduced to the US to help prevent erosion, but now grows out of control.
Non-native / Invasive Species
200
Two bird species living in the same field and eating the same foods would have this kind of relationship.
Competition
200
This is the primary role of bacteria and fungi in an ecosystem
Decomposers
200
These organisms are able to take nitrogen out of the air and convert to a form that plants can take up.
nitrogen-fixing bacteria
200
This process is primarily responsible for global warming.
Fossil Fuel Combustion
200
What is the carrying capacity of this population?
2000
300
Bees have this kind of relationship with plants.
Mutualism (bees get nectar while they pollinate the plants)
300
This percent of the energy available to the grasshopper will be passed on to the frog.
10%
300
This process removes carbon dioxide from the atmosphere in the carbon cycle.
Photosynthesis
300
This gas is primarily responsible for global warming.
Carbon Dioxide (CO2)
300
This type of population growth is illustrated in this graph.
logistic (S-curve)
400
A flea in a dog's fur feeds on blood from the dog.
Parasitism
400
Describe the relationship between owls and snakes here.
Competition
400
This is the form of nitrogen in which plants typically take up nitrogen in the soil.
Nitrates
400
This process refers to precipitation with a pH below 7 that falls and kills fish and plants especially.
Acid Rain
400
This is why diseases spread more quickly in large cities than in rural areas.
Higher Population Density
500
This is the relationship between a rabbit living near a field of clover which is eaten by an owl living near the same field.
predator (owl) - prey (rabbit)
500
This is the trophic level of the fox in this food web.
Secondary Consumer / Heterotroph
500
This is the term for evaporation of water from plants in the water cycle.
Transpiration
500
Deforestation can lead to this problem, without roots of plants to hold the soil in place.
erosion / run-off
500
What process is illustrated by this diagram, showing the concentrations of a pollutant in a food chain.
Biomagnification