| A | B |
|---|
| variety or richness of life at all structural levels | biodiversity |
| an essential renewable resource | biodiversity |
| exploited and depleted by human activities | biodiversity |
| provides natural resources, ecosystem services, and beauty | biodiversity |
| the number of unique species | richness |
| the number of individuals present in each taxonomic group | abundance |
| Percentage of times a species is observed | frequency |
| the "H" in "HIPPO" | Habitat loss |
| the "I" in "HIPPO" | Invasive species |
| the first "P" in "HIPPO" | Pollution |
| the second "P" in "HIPPO" | Population |
| the "O" in "HIPPO" | Overharvesting/Overuse |
| converting natural areas to farms or housing is an example of | Habitat loss - threat to biodiversity |
| a python in the Colorado wilderness is an example of | Invasive species - threat to biodiversity |
| the release of harmful chemicals into the environment is an example of | Pollution - threat to biodiversity |
| 7.1 billion humans is an example of | Population - threat to biodiversity |
| a depleted fish population is an example of | Overharvesting/Overuse - threat to biodiversity |
