Show:
Biomes and Ecosystems
Environmental Issues
Food Chains/Food Webs
Animal Behavior
Carbon, Nitrogen, and Water Cycles
100
This biome is dry and receives little rainfall.
What is a desert?
100
Pollutant chemicals that fall down to the Earth as rain
What is acid rain?
100
The first level in any food chain or food web
What are producers?
100
Both organisms benefit from the relationship
What is mutualism?
100
This gas is what plants release as part of the carbon cycle.
What is oxygen?
200
The most ecologically diverse biome
What are rain forests?
200
The effort to save natural resources
What is conservation?
200
Another name for the first level carnivore
What is a second level consumer?
200
In this relationship, one organism benefits and the other is not affected
What is commercialism?
200
The process in which nitrogen gas is converted into nitrites and then nitrates, which can be used by plants and animals
What is nitrification?
300
It has both biotic and abiotic factors
What is an ecosystem?
300
This process releases carbon dioxide and sulfur oxide
What does burning fossil fuels release
300
This type of organism receives the most energy in a food chain or web
What are producers?
300
One organism is helped and the other is harmed
What is parasitism?
300
When animals give off water in the form of sweat or other waste
What is transpiration?
400
This level contains only one species of organisms
What is a population?
400
Carbon dioxide, nitrous oxide, and methane
What are greenhouse gases?
400
This is the organism at the top of the food chain
What is a top carnivore?
400
Mosquitoes biting you are an example of this type of symbiosis
What is parasitism?
400
The process of burning fossil fuels which adds extra carbon dioxide to the atmosphere
What is combustion?
500
All of the biotic factors in an ecosystem
What is a community?
500
When more substances that can be broken down enter a body of water
What is water pollution?
500
These are always the first level consumers
What are herbivores?
500
Lichens are an example of this type of symbiosis
What is mutualism?
500
The first plants to grow in an area
What are pioneer species?