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APES Chapter 3 Vocab
Terms in this set (44)
A particular location on earth distinguished by its mix of interacting biotic and abiotic components.
An organism that uses the energy of the sun to produce usable forms of energy.
The process by which producers use solar energy to convert carbon dioxide and water into glucose.
The process by which cells convert glucose and oxygen into energy, carbon dioxide and water.
An organism that must obtain energy by consuming other organisms.
An individual incapable of photosynthesis, must obtain energy by consuming other organisms.
Carnivore that eats primary consumers.
Carnivore that eats secondary consumer.
Levels in the feeding structure of organisms. Higher trophic levels consume organisms from lower trophic levels.
The sequence of consumption from producers through tertiary consumers.
A complex model of how energy and matter move between trophic levels.
A carnivore that consumes dead animals.
An organism that specializes in breaking down dead tissues and waste products into smaller particles.
Fungi or bacteria that recycle nutrients from dead tissues and wastes back into an ecosystem.
Gross Primary Productivity (GPP)
The total amount of solar energy that producers in an ecosystem capture via photosynthesis over a given amount of time.
Net Primary Productivity (NPP)
The energy captured by producers in an ecosystem minus the energy producers respire.
The total mass of all living matter in a specific area.
The amount of biomass present in an ecosystem at a particular time.
The proportion of consumed energy that can be passed from one trophic level to another.
A representation of the distribution of biomass, numbers, or energy among trophic levels.
The region of our planet where life resides, the combination of all ecosystems on earth.
The movement of matter with in and between ecosystems.
The movement of water through the biosphere.
The release of water from leaves during photosynthesis.
The combined amount of evaporation and transpiration.
Water that moves across the land surface and into streams and rivers.
Cycle of carbon through the biosphere.
Cycle of nitrogen through the biosphere.
The six key elements that organisms need in relatively large amounts: nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur.
A nutrient required for the growth of an organism but available in a lower quantity than other nutrients.
A process by which some organisms can convert nitrogen gas molecules directly into ammonia.
The transportation of dissolved molecules through the soil via groundwater.
The cycle of phosphorus through the biosphere.
And event, caused by physical, chemical or biological agents, resulting in changes in population size or Community composition.
All land in a given landscape that drains into a particular stream, river, lake or wetland
A measure of how much a disturbance can affect flows of energy and matter in an ecosystem.
The rate at which an ecosystem returns to its original state after a disturbance.
This study and implementation of restoring damaged ecosystems.
Intermediate Disturbance Hypothesis
The hypothesis that ecosystems experiencing intermediate levels of disturbance or more diverse than those with high or low disturbance levels
Something that has worth as an instrument or tool that can be used to accomplish a goal.
It has worth independentof any benefit it may provide to humans.
A good that humans can use directly.
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