Extinction Flashcards
Means that the last identified individual of species has been extinguished or no longer existing permanently.
Extinction
A catastrophic event has decimated life on Earth.
Mass extinction
Environmental factors that occurred in the past still exist today.
Modern Day extinction
The first mass extinction happened 440 million years ago
Ordovician extinction
During this period, land plants developed deep roots that release nutrients in the ocean that cause algal bloom in the ocean to flourish
Devonian extinction
The deadliest mass extinction that occurred 252 million years ago. 96% of life was lost in this extinction
Permian extinction
During this period 80% of life was lost including Dinosaurs ancestor
Triassic extinction
Is the variation of living forms within an ecosystem
Biodiversity
Because of an asteroid hit, 60% of life on Earth was lost including dinosaurs
Cretaceous extinction
Occurs when a natural habitat is no longer able to support its native species
Habitat loss
It is where a habitat fragmented or divided into smaller pieces
Habitat fragmentation
Is the new species introduced to or added in the environment either deliberately or accidentally by human activities
Introduced species
Taking up too many resources from the environment
Overexploitation
Is the introduction of harmful materials into the environment, and sometimes nutrients to other organisms
Pollution
A resource that can be used repeatedly and does not run out because it is naturally replaced
Renewable resources