Ch. 3 the biosphere
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each of the black spaces below before clicking
on it to display the answer.
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| Scientific study of interactions among organisms and between organisms and their environment | Ecology
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| Part of Earth in which life exists including land, water, and air or atmosphere | Biosphere
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| A group of organisms so similar to one another that they can breed and produce fertile offspring | Species
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| Groups of individuals that belong to the same species and live in the same area | Populations
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| Assemblages of different populations that live together in a defined area | Communities
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| A collection of all the organisms that live in a particular place, together with their non living, or physical environment | Ecosystem
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| A group of ecosystems that have the same climate and similar dominant communities | Biome
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| Organisms that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; producers | Autotrophs
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| Organisms that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; autotrophs | Producers
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| Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches | Photosynthesis
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| Process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates | Chemosynthesis
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| Organisms that obtain energy from the foods it consumes; consumers | Heterotrophs
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| Organisms that obtain energy from the foods it consumes; heterotrophs | Consumers
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| Organisms that obtain energy by eating only plants | Herbivores
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| Organisms that obtain energy by eating animals | Carnivores
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| Organisms that obtain energy by eating both plants and animals | Omnivores
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| Organisms that feed on plant and animal remains and other dead matter | Detritivores
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| Organisms that break down and obtain energy from dead organic matter | Decomposers
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| Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten | Food chain
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| Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem | Food web
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| A step in a food chain or food web | Trophic level
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| Diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web | Ecological pyramid
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| Total amount of living tissue within a given trophic level | Biomass
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| Process in which elements, chemical compounds, and other forms off matter are passed from one organism to another and from one part of the biosphere to another | Biogeochemical cycles
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| Process by which water changes from a liquid to an atmospheric gas | Evaporation
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| The process of water evaporating from leaves of plants | Transpiration
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| All the chemical substances that an organism needs to sustain life | Nutrients
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| Process of converting nitrogen gas into ammonia | Nitrogen fixation
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| Conversion of nitrates into nitrogen gas | Denitrification
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| Rate at which organic matter is created by producers in an ecosystem | Primary productivity
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| Single nutrient that either is scarce or cycles very slowly, limiting the growth of organisms in an ecosystem | Limiting nutrient
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| An immediate increase in the amount of algae and other producers that results from a large input of a limiting nutrient | Algal bloom
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