Ecosystems
Living or once living organisms
What are biotic factors?
Symbiosis
What is a long term relationship that involves an exchange of food or energy.
Linear energy transfer
What is a food chain?
Only eats plants
What is a herbivore?
Individuals of a species
What is a population?
Nonliving organisms
What are abiotic factors?
Mutualism
What happens when both animals benefit in the relationship?
Multiple exchanges of energy
What is a food web?
What is a decomposer?
Many species in a given area
What is a community?
Limits population size
Predators, reducing location, competition
Commensalism
What happens when one species benefits and the other is not affected?
Neither created nor destroyed
What is important about matter and energy?
Take in sunlight
Producers or autotrophs
Two organisms needing the same resources in the same place at the same time
What is competition?
Formula for population density
PD= # of species / area or volume
Parasitism
What happens when one species benefits and the other is harmed?
How does energy flow throughout an ecosystem?
Eating other organisms
Consumers
Niche
Interactions among a species and its ecosystem or habitat.
Recycle nutrients
How do decomposers benefit the ecosystem?
A type of African bird, the honeyguide, leads a person to a beehive. The person opens the hive and takes the honey, and the bird feeds on the wax. What kind of relationship do the bird and the person have?
What is mutualism?
Dead or decaying organisms
How does matter transfer throughout an ecosystem?
A Herbivore eats a carnivore which eats a producer
A carnivore eats a herbivore which eats a producer
A carnivore eats a producer which eats a herbivore
A herbivore eats a producer which eats a carnivore
What is #2?
Feeding on another organism
What is predation?