Ecosystem Basics
Food Chains & Webs
Energy Transfer
Succession & Symbiosis
Anything Else
100
A single living thing, such as a chimpanzee or rabbit.
What is an organism?
100
A simple, sequential model of feeding relationships.
What is a food chain?
100
Energy in ecosystems is dependent on these types of organisms.
What are producers?
100
An ecological community in which populations remain stable and exist in balance with each other and their environment.
What is a climax community?
100
Symbiotic relationship between species, where one organism lives on or inside another organism, causing it harm.
What is parasitism?
200
A herd of cows, flock of birds or school of fish, are all examples of this.
What is a population?
200
The autotroph in this food chain.
What is the leaf?
200
This percentage of energy gets transferred from one level to the next in a food pyramid.
What is 10%?
200
The reestablishment of a damaged ecosystem in an area where the soil is intact
What is secondary succession?
200
Organisms that help convert gaseous nitrogen into ammonia in the nitrogen cycle.
What are bacteria?
300
Clownfish and coral make up this sublevel of an ecosystem.
What is a community?
300
The secondary consumer in this food chain.
What is the mouse?
300
A food ______ is more stable than a ______.
What are web and chain?
300
These life forms help create the soil by breaking down bare rock.
What are lichens or pioneer species?
300
Grant gives homework answers to Helen, and in return she gives him $10. Grant and Helen are involved in this type of symbiotic relationship.
What is mutualism?
400
Climate, type of terrain and amount of water are all this type of factor in an ecosystem.
What is abiotic?
400
In the food web below, these are the direct food sources for the snake.
What are the shrew and the frog?
400
The main source of energy for all living things on earth.
What is the sun?
400
The remora fish has an adhesive disk on the back of its head that it uses to attach itself to sharks. When food floats away from the shark’s mouth as it feeds, the remora collects the scraps. This describes this type of symbiotic relationship.
What is commensalism?
400
Competition among members of the same species, for mates, food or territory.
What is intraspecific competition?
500
An area and all of the living and nonliving things that inhabit that area is known as this.
What is an ecosystem?
500
Both of these consumers feed on dead or decaying matter. They are often used interchangeably, however, _________ ingest and digest dead matter internally, while _________ directly absorb nutrients.
What are detritivores and decomposers?
500
The two main processes behind fixing carbon and returning carbon to the atmosphere.
What are photosynthesis and cellular respiration?
500
The Hawaiian islands were created from volcanic rocks through this process.
What is primary succession?
500
The cycle that would be most affected by the destruction of the Earth’s rainforests.
What is the carbon cycle?