Unit 2 - Slideshow #1

The vast span of time over which Earth’s geological development and life forms have evolved

A rapid and widespread decrease in biodiversity due to environmental changes

The variety of life in an ecosystem, which includes habitat diversity, species diversity, and genetic diversity.

The variety of different habitats within an ecosystem, supporting various species

The variety of species in an ecosystem, including species richness and species evenness

The variety of genes within a species, which allows better adaptation to environmental stress

The role a species plays in its ecosystem, including how it interacts with other species and its environment

The full potential role a species could occupy in an environment without competition

The actual role a species occupies after taking into account limiting factors like competition

Competition between different species for resources

Competition within the same species, often for mates or resources

No two species can occupy the same niche in the same environment for an extended time

Species that naturally occur in a particular ecosystem or region

Species that are introduced into a new ecosystem, intentionally or accidentally

A species that has a disproportionately large effect on its ecosystem, helping maintain structure and biodiversity

A nonnative species that causes harm to the environment, economy, or native species

Species that create or modify habitats and improve conditions for other species

Species that serve as early warnings of environmental damage

The biological interaction where one organism feeds on another organism

A relationship where both species benefit from the interaction

A relationship where one species benefits while the other is neither helped nor harmed

A relationship where one species benefits at the expense of another

Ecological development in lifeless areas where no soil exists

Regions with high biodiversity that are under threat of destruction