a heritable trait or behavior in an organism that aids in its survival in its present
environment
What is Adaptation
100
Name three ways which evolution can be applied.
What is agriculture, medicine, migration, biodiversity
100
What is Directional selection
What is when the average phenotype changes in one direction. Decreases genetic variation
100
What does macro evolution show us
What is extinction and succession
100
a point on a phylogenetic tree where a single lineage splits to distinct new ones
What is a branch point
200
a structure that is similar because of descent from a common ancestor
What is Homologous Structure
200
Who said species change over time
Who is Darwin
200
Which selection favors extremes
What is Disruptive Selection
200
What are the 4 mechanisms of evolution
What is natural selection, genetic drift, gene flow, mutation
200
diagram used to reflect the evolutionary relationships between organisms or groups of organisms
What is phylogenetic tree
300
a formation of a new species
What is Speciation
300
Who believed organisms changed in their own lifetime, not over a long period of time.
Who is Lamarck
300
Why is there still genetic variation?
What is because recessive genes can hide and there is variation in the enviroment
300
Speciation over geographical distance or barriers
What is allopatric speciation
300
the most specific category of classification
What is a species
400
the greater relative survival and reproduction of individuals in a population that have favorable heritable traits, leading to evolutionary change
What is natural selection
400
What makes an organism able to reproduce
What is fitness
400
Favorable traits that enhance the ability to obtain mates, not survival
(Type of Selection)
What is sexual selection
400
What is the only mechanism of evolution that results in adaptation
What is natural selection
400
a broader scale of evolutionary changes seen over paleontological time
What is Macro Evolution
500
a magnification of genetic drift in a small population that migrates away from a large parent population carrying with it an unrepresentative set of alleles
What is founder effect
500
How many genetic codes are there for all living things
What is 1
500
Natural Selection only acts on ____________ variation
What is exisitng
500
Define a theory and why evolution is one
What is a concept that has been tested and approved over time and is generally accepted. This does not mean it is a fact or true.
500
the magnification of genetic drift as a result of natural events or catastrophes