Ecology all three days
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| 🇬🇧 | 🇬🇧 |
| All living things inhabiting the earth | Biotic factors |
| The nonliving parts of an environment | Abiotic factors |
| Group of the same species (2) | Population |
| All populations in the same area (3) | Community |
| What biome is virginia in | Temperate deciduous forest |
| The variety observed within an environment including organisms and genes; a lot in forests & wetlands | Biodiversity |
| Wetlands formed when rivers meet the sea containing a brackish mixture of freshwater & saltwater | Estuaries |
| Largest estuary in the u.s. | Chesapeake bay watershed |
| First reason biodiversity is important | Medicine, wood, clothing, rubber, adhesives |
| Second reason biodiversity is important | Warn us of toxins in environment |
| Third reason biodiversity is important | Inspiration for engineering and technology |
| Fourth reason biodiversity is important | Maintain atmosphere by adding oxygen and removing carbon dioxide |
| Fifth reason biodiversity is important | Prevent soil erosion |
| Sixth reason biodiversity is important | Purify water and cycle nutrients |
| Seventh reason biodiversity is important | Pollination |
| Eighth reason biodiversity is important | Prey needs predators |
| Causes for species extinction | Overpopulation, pollution, invasive species, habitat loss, climate change |
| Main reason for loss of biodiversity | Overpopulation |
| Why does the human population keep growing | Resources and technology |
| Species from other areas that were introduced to an environment they don’t belong to by humans | Invasive species |
| Interspecies interaction | Symbiosis |
| Both species benefit | Mutualism |
| Pioneer organisms colonize new sites on bare rock that forms when glaciers melt or volcanic lava cools and hardens | Primary succession |
| Occurs on new soil due to a natural disaster or human disturbance | Secondary succession |
| Due to territorial behavior | Uniform |
| Non-territorial | Random |
| What affects population growth | Population density and limiting factors |
| Formula for population density | Number of individuals/area squared |
| Anything that causes a decrease in population | Limiting factors |
| Human disturbances or natural disasters that randomly decrease population no matter the size | Density-independent |
| Rapid, continual population increase due to unlimited resources | Exponential growth |