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APES Vocab
The State of our Earth
| Term | Definition |
|---|---|
| abiotic | nonliving |
| accuracy | how close a measured value is to the actual or true value |
| anthropogenic | derived from human activities |
| background extinction rate | the average rate at which species become extinct over the long term |
| biodiversity | the diversity of life forms in an environment |
| biophilia | love of life |
| biotic | living |
| control group | in a scientific investigation, a group that experiences exactly the same conditions as the experimental group, except for the single variable under study |
| development | improvement in human well-being through economic advancement |
| ecological footprint | a measure of how much an individual consumes, expressed in area of land |
| ecosystem | a particular location on Earth with interacting biotic and abiotic components |
| ecosystem services | the processes by which life-supporting resources such as clean water, timber, fisheries, and agricultural crops are produced |
| environment | the sum of all the conditions surrounding us that influence life |
| environmental indicator | an indicator that describes the current state of an environmental system |
| environmental science | the field of study that looks at interactions among human systems and those found in nature |
| environmental studies | the field of study that includes environmental science and additional subjects such as environmental policy, economics, literature, and ethics |
| environmentalist | a person who participates in environmentalism, a social movement that seeks to protect the environment through lobbying, activism, and education |
| fracking | hydraulic fracturing, a method of oil and gas extraction that uses high-pressure fluids to force open cracks in rocks deep underground |
| genetic diversity | a measure of the genetic variation among individuals in a population |
| greenhouse gases | gases in Earth’s atmosphere that trap heat near the surface |
| hypothesis | a testable conjecture about how something works |
| natural experiment | a natural event that acts as an experimental treatment in an ecosystem |
| null hypothesis | a prediction that there is no difference between groups or conditions, or a statement or an idea that can be falsified, or proved wrong |
| precision | how close the repeated measurements of a sample are to one another |
| replication | the data collection procedure of taking repeated measurements |
| sample size | the number of times a measurement is replicated in data collection |
| scientific method | an objective method to explore the natural world, draw inferences from it, and predict the outcome of certain events, processes, or changes |
| speciation | the evolution of new species |
| species | a group of organisms that is distinct from other groups in its morphology (body form and structure), behavior, or biochemical properties |
| species diversity | the number of species in a region or in a particular type of habitat |
| sustainability | living on Earth in a way that allows humans to use its resources without depriving future generations of those resources |
| sustainable development | development that balances current human well-being and economic advancement with resource management for the benefit of future generations |
| theory | a hypothesis that has been repeatedly tested and confirmed by multiple groups of researchers and has reached wide acceptance |
| uncertainty | an estimate of how much a measured or calculated value differs from a true value |