| Definition | Term |
|---|
| Anything that occurs naturally and is used by people | |
| A species that influences the survival of many other species in an ecosystem | |
| Species in danger of becoming extinct in the near future | |
| The number of different species in an area | |
| Species that could become endangered in the near future | |
| The practice of managing the use of resources wisely so the resources last longer | |
| The disappearance of all members of a species | |
| Type of natural resource that is either always available or is naturally replaced in a relatively short time | |
| | Definition | Term |
|---|
| True or false: Within an ecosystem, a large area will usually contain less species than a small area. | |
| Occurs when a population grows at an ever-increasing rate | |
| The illegal killing or removal of wildlife from their habitats | |
| As the population increases, the demand for natural resources _____. | |
| Type of natural resource that is not replaced in a useful time frame | |
| The mating of animals in zoos or in wildlife preserves | |
| The contamination of Earth's land, water, or air | |
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Periodic Table
Planets from the Sun
Digits of Pi
