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27 Cards in this Set
- Front
- Back
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Nonliving parts of an organism's environment; air currents, temperature, moisture, light, and soil are examples of _______ factors.
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abiotic
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The __________ is the portion of Earth that supports life; extends from high in the atmosphere to the bottom of the oceans.
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biosphere
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All the living organisms that inhabit the environment are ________ factors.
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biotic
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A community made up of interacting populations in a certain area at a certain time is called a(n) _______________.
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biological community
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___________ is the exchange of information that results in a change of behavior.
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commensalism
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___________ is the scientific study of interactions between organisms and their environments.
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ecology
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The interactions among populations in a community, the community's physical surroundings (abiotic factors) are called the ___________.
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ecosystem
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A(n) __________ is the place where an organism lives out its life.
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habitat
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__________ is a symbiotic relationship in which both species benefit.
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mutualism
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The role or position a species has in its environment (included biotic and abiotic interactions as an animal meets its needs for survival and resproduction) is called its _________.
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niche
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___________ is a symbiotic relationship in which one organism benefits at the expense of another, usually another species.
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parasitism
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A(n) ______________ is a group of organisms all of the same species, which interbreed and live in the same place at the same time.
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population
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_________ is a permanent, close association between two or more organisms of different species.
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symbiosis
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These ecosystems are _______ ecosystems. Forest, old farm field, meadow, yard, garden plat, empty lot, compost heap, volcano site, rotting log.
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terrestrial
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These ecosystems are _______ ecosystems. Pond, lake, stream, estuary, ocean, aquarium.
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aquatic
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An organism that uses light energy or energy stored in chemical compounds to make energy-rich compounds is a producer or _________.
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autotroph
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An organism that cannot make its own food and feeds on other organisms is called a(n) ________.
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heterotroph
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________ break down the complex compounds of dead or decaying plants and animals into simpler molecules that can be more easily absorbed.
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decomposers
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A(n) _________ is a simple model that scientists use to show how matter and energy move through an ecosystem.
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food chain
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Each organism in a food chain represents a feeding step or _____________, in the passage of energy and materials.
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trophic level
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A model that shows all the possible feeding relationships at each trophic level in a community is called a(n) ________.
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food web
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__________ is the total weight of living matter at each trophic level.
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biomass
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List the parts of the water cycle. (list 6)
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transpiration/evaporation
condensation precipitation runoff/groundwater |
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List the parts of the carbon cycle. (list 6)
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respiration/fuel combustion
photosynthesis death/decay fossil fuels |
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List the parts of the nitrogen cycle. (list 8)
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1. nitrogen in the atmosphere
2. nitrogen-fixing bacteria 3. nitrogen-releasing soil bacteria 4. assimilation by plants 5. consumption of plants/plant-eating animals 6. evaporation 7. urine and dead plants/animals 8. decomposing bacteria and fungi |
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List the parts of the phosphorus cycle. (list
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1. Weathering rocks
2. animal and plant wastes 3. soil decomposers 4. rain and groundwater leaching take into bodies of water 5. assimilated by plants 6. sediments build in bodies of water and form new rocks 7. geological process bring the new rocks to the surface where they weather. |
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In an ecosystem, energy is _________ and matter is _________.
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lost, recycled (the energy is replenished by the sun)
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