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Living Things and the Environment
Populations
Energy Flow in Ecosystems
Interactions Among Living Things
Cycles of Matter
100
Another word for a living things is . . .
What is an organism?
100
This causes populations to increase.
What is the birth of new members?
100
This breaks down wastes and dead organisms, and then returns it to the ecosystem.
What is a decomposer?
100
This does the killing in predation.
What is a predator?
100
This cycle involves liquid.
What is the water cycle?
200
An organism needs food, water, and this.
What is shelter?
200
The largest population that an area can support is this.
What is carrying capacity?
200
This is a series of events in which one organism eats another and obtains energy.
What is a food chain?
200
This is the role of an organism in its habitat.
What is a niche?
200
Name the four main cycles of life.
What are water, oxygen, carbon, and nitrogen?
300
Water, sunlight, oxygen, temperature, and soil are examples of this.
What is abiotic factors?
300
Name three limiting factors for populations.
What are food, water, light, weather conditions, or soil composition? (name 3)
300
Define producer in relation to ecosystems.
What is an organism that can make its own food?
300
A relationship in which one species benefits and the other species is neither helped nor harmed is this.
What is commensalism?
300
This releases carbon dioxide as waste.
What is consumer?
400
This is the amount of oxygen in the air.
What is 20%?
400
The effect of unusual weather conditions on populations is this.
What is decrease the population?
400
This is at the top of the food chain.
What is a consumer?
400
These each have a variety of adaptations that are suited to their specific living conditions.
What is an organism?
400
This is the process of changing nitrogen into a usable form.
What is nitrogen fixation?
500
The communities and the abiotic factors form this.
What is an ecosystem?
500
This happens to a species when weather changes.
What is emigrate?
500
Consumers are classified according what they eat... Name the four groups of consumers.
What are herbivores, carnivores, omnivores, and scavengers?
500
These are the three types of symbiotic relationships.
What are mutualism, commensalism, and symbiosis?
500
The relationship between bacteria and legumes is an example of this.
What is mutualism?