All Flashcards
What is the effect of a physical barrier on a population?
It can lead to allopatric speciation if the barrier prevents interbreeding.
How can different breeding times cause speciation?
Populations may undergo sympatric speciation if they breed at different times, preventing interbreeding.
What is the effect of climate change on species adaptation?
Climate change creates environmental pressures that force species to adapt or face extinction.
What is the effect of habitat fragmentation on species evolution?
Habitat fragmentation can isolate populations, leading to different evolutionary paths and potentially speciation.
Define adaptation.
Process where species change over time to better fit their environment through genetic, behavioral, or physiological changes.
Define evolution.
The change in the heritable characteristics of biological populations over successive generations.
Define allopatric speciation.
Speciation that occurs when a physical barrier prevents two populations from interbreeding.
Define sympatric speciation.
Speciation that occurs when populations in the same area stop reproducing due to different breeding times, seasons, or incompatibilities.
Define reproductive isolation.
When two populations can no longer interbreed, leading to the formation of separate species.
Define genetic diversity.
The variety of genes within a population or species.
What is adaptation?
Process where species change over time to better fit their environment.
What is genetic adaptation?
Changes in DNA passed down through generations.
What is behavioral adaptation?
Changes in actions or habits of a species.
What is physiological adaptation?
Changes in body functions of a species.
What is evolution?
The change in the heritable characteristics of biological populations over successive generations.
What is reproductive isolation?
When two populations can no longer interbreed, leading to separate species.
What is allopatric speciation?
Speciation due to a physical barrier preventing interbreeding.
What is sympatric speciation?
Speciation in the same area due to different breeding times or other incompatibilities.
Define 'survival of the fittest'.
Having genes that best match the environment, leading to greater likelihood of thriving and reproduction.
What is genetic diversity?
The variety of genes within a population.