Biogeography
Phylogeny
Natural Selection
Vocabulary
More Vocabulary
100
How penguins of the same species became geographically isolated.
What are Pangea and ice bridges?
100
When a group within a species separates from other members of its species and develops its own unique characteristics.
What is speciation?
100
The father of Evolution.
Who is Charles Darwin?
100
When a population may gain or lose alleles when fertile individuals move into or out of a population/
What is gene flow?
100
When every organism of a species has died.
What is extict?
200
Reasons why different species of penguins can live in the same location.
What are different food sources, mating rituals, and breeding times?
200
Animals with amniotic eggs.
What are turtles and leopards?
200
Organisms often have more ____ than will go on to survive and mature.
What are offspring?
200
Any heritable characteristic that increases the organisms ability to survive.
What is adaptation?
200
Selective breeding of domesticated plants and animals to promote the occurrence of desirable traits.
What is artificial selection?
300
Prior to DNA analysis, 2 methods biologists used to determine relatedness.
What are biogeographical evidence and fossil evidence?
300
Biological evidence you could look at to determine evolutionary relatedness between species.
What is DNA, fossil evidence of deceased organisms, skeletal structure of living organisms?
300
Criteria measuring how well can organism can surive and reproduce in its environment.
What is fitness?
300
A change in the genetic code of the DNA.
What is mutation?
300
Features that have different functions but have similar structure due to common ancestry.
What are Homologous Structures?
400
The adaptation (by mutation) of an organism which enables it to successfully spread, or radiate, into other environments.
What is adaptive radiation?
400
According to this cladogram, organism most closely related to sharks.
What are ray-finned fish?
400
Animals and their features that Charles Darwin observed that lead him to his theory of evolution.
What are Galapagos finches and their beaks?
400
Various cells, tissues, and organs in a body which no longer serve a function.
What are vestigial structures?
400
The los of genetic variation which occurs when a new population is established.
What is founder effect?
500
When a species can only be found in one location.
What is endemic?
500
The 2 extant species that are closely related to each other.
What are C and D?
500
Criteria for natural selection.
1. more individuals are born than can survive.
2. natural heritable variation affects ability to survive and reproduce.
3. fitness varies among individuals.
500
3 causes of microevolution.
What are:
1. genetic drift
2. gene flow
3. natural selection?
500
A rabbit population has white (dominant) or brown fur. Over time the population has shifted to be exclusively brown.
What is genetic drift?