Consumers
A simple model that shows the feeding relationships among organisms in an ecosystem
What is a food chain?
A close relationship between two different species
What is symbiosis?
All of the organisms in an ecosystem that belong to the same species
What is a population?
The place in which an organism lives (where it can find all of the biotic and abiotic factors it needs to live)
What is its habitat?
Bacteria and wheat are which type of factors
What are biotic factors?
Animals that consume dead organisms
What are decomposers?
A symbiotic relationship in which one species benefits but the other is not affected
What is commensalism?
All of the populations in an ecosystem
What is a community?
Organisms that can not make their own energy-rich molecules and must obtain energy by eating other organisms
What are consumers?
Organisms that use an outside energy source to make energy-rich molecules
What are producers?
Animals that only eat meat
What are carnivores?
A symbiotic relationship in which one organism benefits and the other is harmed.
What is parasitism?
Which of these are part of a forest ecosystem - trees, squirrels, sunlight, soil, climate
What are ALL?
Organisms in the same ecosystem that all belong to the same species
What is a population?
Sunlight and water are examples of which type of factors?
What are abiotic?
Animals that eat both consumers and producers
What are omnivores?
A symbiotic relationship in which both species benefit
What is mutualism?
The biotic part of soil
What is humus?
All of the organisms living in an area and the nonliving features of their environment
What is an ecosystem?
If there are 200 pigeons living in a lot that is 20 square feet in area, what is their population density?
What is 10 pigeons/square ft?
Animals that only eat producers
What are herbivores?
The type of relationship that exists between bees and flowers
What is mutualism?
The effect on a population size when there are many deaths and few births
What is decrease?
HOW an organism survives in its environment (by interacting with the biotic and abiotic factors)
What is its niche?
This can change form but can never be created or destroyed
What is matter?