Biodiversity definitions
Extinction
What is the term for when the last member of a species dies?
Helps us understand the purpose and reasons for our physiology and anatomy
What is evolution?
Species found only in a specific geographic area are this.
What is an endemic species?
Give two different definitions of evolution.
What is 1) Change in a kind of organism over time 2) Process by which modern organisms have descended from an ancient organism 3) Change in the relative frequency of alleles in a population
An example of the economic value of Biodiversity
What is lumber-jacking, fishing and hunting
Biodiversity
What is the variety of life in an area that is determined by the number of different species in that area?
These have evolved into an enormous variety of diverse organisms
What are simple, unicellular organism?
Building more houses, polluting the air and water, removing forests are examples of this.
What is how humans threaten biodiversity?
The pattern of evolution in which species that once were similar to an ancestral species diverge
What is divergent evolution
The Three main groups of Biodiversity
What are Genetic, Species and Ecosystem Biodiversity
IOD (Index of biodiversity)
What is the number of unique species multiplied by number of samples divided by number of total individuals?
Most fossils are formed from theses. Be specific!!
What are bones, teeth, shells ad woody stem?
Excessive/overuse in harvesting etc. in using species that have economic value.
What is over-exploitation?
Fitness is a result of ___________.
What is Adaptation
A ladybug with a distinct color with that species represents this type of biodiversity.
What is genetic diversity?
This is a name for the variety of ecosystems present in the biosphere.
What is Ecosystem biodiversity?
Were frozen in the Arctic ice have been dug up with their skin, bones and muscles perfectly preserved!
What are woolly mammoths?
Mass extinction
What is an event in which a large percent of all living species becomes extinct in a relatively short period of time?
A pattern of evolution in which distantly related organisms evolve similar traits
What is convergent evolution
Finding different animals in Alaska as compared to animals in Washington state would be an example of this type of biodiversity.
What is Ecosystem biodiversity?
This occurs when animal waste, raw sewage, or other items rich in nitrogen and phosphorus flow into waterways causing excessive algae growth.
What is Eutrophication?
The rock most fossils are found in.
What is sedimentary rock?
Different environmental conditions occurring along the boundaries of an ecosystem.
What are edge effects?
When an ancestral species evolves into an array of species to fit a number of diverse habitats
What is adaptive radiation
This has a direct economic value to humans.
What is maintaining biodiversity?