Show:
Living Things and the Environment
Population
Energy Flow in Ecosystems
Interactions Among Living Things
Cycles/Changes
100
What is the lowest level of organization?
An organism
100
How can an organism enter a population?
By being born or immigrating
100
What are the three energy roles?
Producer, Consumer, Decomposer
100
What is natural selection?
The process by which organisms survive based on adaptations.
100
What processes make the water cycle?
Precipitation, evaporation, condensation
200
What is the difference between biotic and abiotic factors?
Biotic factors are living, abiotic are nonliving.
200
How can an organism leave a population?
By dying or emigrating
200
What is a food chain?
A diagram that shows one path of energy through an ecosystem.
200
What is an adaptation?
A special characteristic unique to one species or organism
200
What is nitrogen fixation?
The process by which free nitrogen is changed into a usable form
300
What is a habitat?
A specific environment that caters to a specific organism's specific needs.
300
What is birth rate?
The amount of births in a population
300
What is a food web?
A diagram that shows multiple possible paths of energy through an ecosystem.
300
What are the three types of interactions?
Competition, predation, and symbiosis
300
What is primary succession?
The creation of an ecosystem
400
What is a species?
A group of organisms that is physically similar.
400
What is death rate?
The number of deaths in a population
400
What is an energy pyramid?
A diagram that shows the amount of energy passed up through predators in an ecosystem
400
What are the three types of symbiosis?
Mutualism, commensalism, and parasitism.
400
What is secondary succession?
The recreation of an ecosystem where nutrients and topsoil still exist.
500
What are the levels of organization from smallest to largest?
Organism, population, community, ecosystem
500
What is a limiting factor?
An environmental factor that causes a population to stop growing.
500
What is the difference between a food chain and web?
Among other things, a food web shows multiple paths of energy, whereas a food chain shows only one.
500
What is the difference between the types of symbiosis?
Whether the members are helped or hurt.
500
What is the difference between primary and secondary succession?
The main difference is that an ecosystem used to exist in an area where secondary succession occurs