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Ecosystems and Nutrient Cycles
Terms in this set (36)
Organisms that share same characteristics and features, can reproduce with other members of same species.
Group of organisms of the same species that share a habitat.
Non-living environmental factors
Living components that shape an ecosystem.
Collection of populations that interact with + depend on each other. Some populations cannot live independently without depending on other species.
Complex community, includes abiotic and biotic factors interacting with each other.
The more variations of species in an ecosystem.
It includes what a species eats and what environment it needs to survive.
Relationship where one organism hunts the other for food.
When species compete for a resource, and possibly must adapt in order to benefit.
Organisms that feed only on producers. They are herbivores and are present in every ecosystem.
The plant eaters in an ecosystem. They are also considered the primary consumers.
The step/level that an organism occupies in a food chain.
An animal that feeds on secondary consumers in a food chain.
Only can eat the flesh of other animals
A "chain" of energy passed throughout the trophic levels, there are many variations of it.
Shows all the feeding relationships between plants and animals and how they are interconnected with multiple paths.
Hunts other animals for food.
The growth of an organism in a newly developed area.
Ecological succession that occurs on a previously colonized habitat that has been severely disturbed or damaged.
The first species to inhabit an area.
A species crucial to the thriving of an ecosystem/community
An introduced species not native to the area.
Living animal being hunted for food
A relationship between two organisms.
A type of symbiosis in which both species involved benefit.
A type of symbiosis in which one species benefits, and the other is not affected.
A type of symbiosis where one species benefits, and the other species is harmed in the process.
Travels through the geology, biology, and chemical reactions on earth.
Travels through the earth in one direction from the sun.
Flow of energy
Only a fraction of the energy (10%) gets passed through the trophic levels. Some gets used by the organisms, and the rest is transferred into heat energy.
The evaporation of water through the leaves of plants. (A biological process)
The nutrient that does not enter the atmosphere
The nutrient that has to be converted by bacteria from the gas state to a usable form by living organisms
Nutrient essential for chemical reactions
Organisms that break down dead matter