Any form of life.
Population, Community, Ecosystem, Biome, Biosphere, Types of Biomes, Rainforest, Temperate Deciduous Forest, Coniferous Forest, Desert, Tundra, Grassland/Savannah, Freshwater Biome, Marine Biome, Biotic Factors, Abiotic Factors, Carrying Capacity
Food Chain, Food Webs
Primary Consumers, Secondary Consumers, Tertiary Consumers
The natural or gradual change in organisms and ecosystems. It occurs in stages and can take place in both water and on land. Ecological succession takes a very long time, so it is difficult to observe.
Occurs in places where an ecosystem has never existed, like the side of a volcano.
The process that begins in an ecosystem when something has disturbed or destroyed a community. Such as a wildfire or a hurricane.
During either succession, the pioneer species is the first to move into an ecosystem. An example would be lichens.
Occurs at the end of both successions and it is when a community climaxes. This means that there would be little or no change in species during the future, unless a disturbance occurs.
Exponential Growth, J-curve
Population Growth Rate
Logistic Growth, S-curve
Population Growth, Sustainability
When water is polluted wiith harmful chemicals or toxins that effects an environment negatively.
Point Source Pollution
Non-Point Source Pollution
It is any geological formation containing water, especially one that supplies water for wells and springs. It is like an underground river.
Biodiversity is the variety of organisms in a geographic area.
The hot spots are areas that contain large amounts of earth's species (more than half) and they are mainly found in the tropics. There are 17 regions of the hot spots and the regions are limited (2 percent). This means that the species in the areas are very sensitive to habitat degration.
Habitat Destruction, Overexploitation, Introducing Foreign Species